Tuesday, February 2, 2021

Nok stock: Former king of the stock market, Nokia (NOK), is rising from the ashes

Feb. 2, 2021

Here is the link. 

Consider our Popular Investor's HUB for frequent updates on all of the stock featured on the channel: www.thepopularinvestor.com Nokia stock is an underappreciated, undervalued 5g gem. NOK stock is trading at a big discount to its competitors despite improving fundamentals in terms of contract wins and strong free cash flow generation. Nokia stock was once trading above $60 in the late 99s, can we reach those highs again? Based on a discounted free cash flow model using analyst estimates of 13% CAGR over the coming 5 years, Nokia stock price has an intrinsic value of around $21 over the coming years.


My notes:

  1. Nokia intrinsic value $21.00, discount cash flow principle
  2. Pump and dump - not short squeeze

NOK stock: Battle of the 5G Stocks: Buy Qualcomm, Nokia or Analog Devices?

Feb. 2, 2021

Here is the link. 

The 5G tech sector is set to soar higher this year. Research analyst Matt Clark and Green Zone Fortunes editor Charles Sizemore discuss three 5G stocks: Qualcomm (QCOM), Nokia (NOK) and Analog Devices (ADI). Find out which stock is the strongest 5G buy right now. 3:17​ — 5G ETF 4:11​ — Qualcomm (QCOM) stock 10:16​ — Nokia (NOK) stock 19:00​ — Analog Devices (ADI) stock


Sven Carlin: Best 5G Stocks - QCOM, NOKIA, ERICSSON N. TESLA

 Feb. 2, 2021

Here is the link. 

Best 5G Stock - QCOM, NOKIA, ERICSSON N. TESLA One is the best 5G technology stock to buy as it offers a 13% dividend yield and possibly also much higher in the future.

Nok stock: Large Option Traders Making Aggressive Bets On GameStop, Nokia

 Feb. 2, 2021

Here is the article. 

My notes:

  1. 10,000 Nokia call options, each call 100 shares, 1 million share, call option, $5 strike price, $1.36 million bullish bet. 
  2. Another 1.4 million bullish bet - $5 strike price
  3. Shares of Nokia spiked from under $4 to as high as $9.79 before dropping back down to around $4.50 on Tuesday.
  4. The $1.4 million Nokia call purchase has a break-even price of $6.40, suggesting at least 40.9% upside for the stock over the next two years.

At 10:39 a.m., a trader bought 10,000 Nokia call options with a $5 strike price expiring in January 2023 at the ask price of $1.36. The trade represented a $1.36 million bullish bet.

At 11:02 a.m., a trader bought another 10,000 Nokia call options with a $5 strike price expiring in January 2023 at the ask price of $1.40. The trade represented a $1.4 million bullish bet.

Why It's Important: Even traders who stick exclusively to stocks often monitor option market activity closely for unusually large trades. Given the relative complexity of the options market, large options traders are typically considered to be more sophisticated than the average stock trader.

Many of these large options traders are wealthy individuals or institutions who may have unique information or theses related to the underlying stock.

Unfortunately, stock traders often use the options market to hedge against their larger stock positions, and there’s no surefire way to determine if an options trade is a standalone position or a hedge. In this case, given the relatively small size of the largest PayPal trades by institutional standards, they were likely not institutional hedges.

Short Squeeze Volatility: GameStop and Nokia are two of the popular stocks that WallStreetBets and other retail traders have targeted in recent weeks in triggering short squeezes in some of the most shorted stocks on Wall Street.

In the past month, shares of Nokia spiked from under $4 to as high as $9.79 before dropping back down to around $4.50 on Tuesday.

Even prior to the pandemic, both companies were struggling. In 2019, Nokia reported just $7 million in profits, its first positive net income since 2015. 

The WallStreetBets community helped drive a short squeeze in GameStop and other stocks that ultimately led to Robinhood and several other brokers limiting or banning buys of the most volatile stocks. The squeeze also hit hedge funds that were short GameStop and others extremely hard. Melvin Capital reported a 53% loss for the month of January and was forced to take $2.75 billion emergency investment from Citadel and Point72 Asset Management.

Benzinga’s Take: The two largest GameStop option trades are short-term in nature, suggesting they are plays on the current short squeeze. The Nokia call purchases, on the other hand, don’t expire for nearly two years and maybe bets on the strength of the company’s underlying business.

The $1.4 million Nokia call purchase has a break-even price of $6.40, suggesting at least 40.9% upside for the stock over the next two years.

GameStop

GameStop’s 2019 revenue was down 3% and it reported a net loss of $673 million.

Robinhood restricted 50 stocks: Feb. 1, 2021 - performance

 Yahoo -> Finance -> Portfolio 








Based on my research, I like to purchase GTE, RYCEY, and put INO stock under watch. 


Ameritrade IRA account: Feb. 2, 2021 - short sale squeeze

 


CTRM - 14.50% gains
CVM - 10.78% gains
NOK - 6.14% gains
INO - 30% gains

Short interest: CVM vs INO | Feb. 1, 2021 | First day | Robinhood restriction removed

 Feb. 1, 2021

Today CVM gains 10%, INO 30%, CVM short interest 28.74, INO short interest 30.01

I like to figure out what to do next. I need to push myself to learn and also purchase shares of GTE and RYCEY stocks. 


Monday, February 1, 2021

INO stock: Inovio Surges On Reddit Call To Action As Investment Firm Boosts Stake

Feb. 1, 2021

Here is the article. 

  1. 33% gains on Feb. 1, 2021
  2. BlackRock now owns more than 14.2 million shares of INO stock, 8.4% of the company. 

Inovio Pharmaceuticals (INO) surged Monday on a Reddit call to action and after investment firm BlackRock upped its stake in the biotech company. INO stock soared to a five-month high.

The Reddit post details "a battle against corruption in the FDA, Big Pharma and shorts." Inovio Pharma is one of several biotech companies working on a Covid-19 vaccine. It's also testing a treatment for a precancerous condition of the cervix.

Shares of INO stock catapulted 33% to close at 16.96 on the stock market today.

In addition to the Reddit call, INO stock jumped on BlackRock's investment. A Securities and Exchange Commission filing shows BlackRock now owns more than 14.2 million shares of INO stock, or 8.4% of the company.

RYCEY stock: Plan to purchase shares of RYCEY at price $1.4/ share

Reddit - link is here.  

Bought my first stocks ever today! AMC and stumbled into RYCEY @ $1.37, why does going all in on a hundred year old, number two aircraft engine manufacturer, with 50k employees and at an all time low stock price seem like the surest investment I've ever seen?

Yahoo -> Finance -> conversation

 they get paid via flight hours of the engines installed on most Boeing and airbus planes.. no flights = no money. When COVID ends, flights will return = profit for RR

GTE stock: TheStreet quant Ratings

 Feb. 1, 2021

I like to work on equity research on GTE stock. I like to purchase 10000 shares of GTE shares in next week. 

TheStreet Quant Ratings 


Peer group



Sunday, January 31, 2021

Wall Street Week - Full Show (01/29/2021)

Jan. 31, 2021

Here is the link. 

Jan.29 -- One of the most iconic brands in financial television returns for today's issues and today's world. This week's Wall Street Week features David Westin's interviews with Former Treasury Secretary Lawrence H. Summers, Bank of America CEO Brian Moynihan, Related Companies CEO Jeff Blau, Council of Economic Advisers Member Jared Bernstein, Goldman Sachs Wealth Management CIO Sharmin Mossavar-Rahmani, and Financial Insyghts President Peter Atwater. The conversations highlight the sentiment that led to the retail trading GameStop frenzy, the democratization of market access, and the role of regulation in individual investor behavior.


Short interest: Business opportunity | Chinese | build wealth from short sale squeeze

Jan. 31, 2021

Here is the article. 

My notes:

  1. GME接近90%的流通股都掌握在机构手中,这一轮GME可能接近百倍的股价涨幅
  2. 公开交易的投资基金Senvest Capital,10月份的时候购买了GameStop(GME)5.54%的股权。作为一家十亿美元的基金,这一笔操纵很有可能让他们过去两个月基金的整体收益超过了100%。- Look up Senvest capital
  3. 摩根大通,去年第三季度末的时候,它就持有368196份看涨期权。在2020年9月30日的时候,这些看涨头寸差不多价值是280万美元,当时GME的股价是10.2美元。现在GME的股价一度逼近500美元,如果在最高点摩根大通卖出了,那收益将超过2亿美元。
  4. GME现在的期权交易量经常一天10亿美元,未平仓的看涨期权超过150亿美元,经常每天都有动辄一笔超过5000万美刀的看涨期权大单,我相信没有散户可以拿出单笔超过5000万美元的资金,还跑去买看涨期权。
  5. 多头这个时候会怎么做?一个方法,让GME这些公司增发股票,空头就可以购买足够多的流通股,止损离场。另一个方法,多头卖出GME接近90%的流通股,瞬间市场上流通股多了几十倍,GME遭遇踩踏,空头低价平仓。无论哪种情况,受伤的一定是在高位追进去的散户。

大盘为什么暴跌?背后的逻辑不用我多说,对冲基金被WSB的散户轧空,被迫要卖出多头仓位,以便可以用流动性去进行平仓垃圾股。所以我们就看到了,过去一周的诡异现象。


越是好公司,可能会越跌的越多。因为好公司往往都是对冲基金的重点持仓,它们被抛售的也就最厉害。面对这种诡异的局面,其实没必要大惊小怪的,因为风险往往与机遇并存,这可能是我们千载难逢的机会。


我们必须要明白一个问题,这一轮轧空真是散户在收割机构吗?相信很多被蒙在鼓里的人,肯定会相当认可这个观点,但实际上GME接近90%的流通股都掌握在机构手中,这一轮GME可能接近百倍的股价涨幅,谁是最大的获益者其实基本一目了然。


举个最简单的例子,公开交易的投资基金Senvest Capital,10月份的时候购买了GameStop(GME)5.54%的股权。作为一家十亿美元的基金,这一笔操纵很有可能让他们过去两个月基金的整体收益超过了100%。


再好比摩根大通,去年第三季度末的时候,它就持有368196份看涨期权。在2020年9月30日的时候,这些看涨头寸差不多价值是280万美元,当时GME的股价是10.2美元。现在GME的股价一度逼近500美元,如果在最高点摩根大通卖出了,那收益将超过2亿美元。


还有个证据,那就是GME现在的期权交易量经常一天10亿美元,未平仓的看涨期权超过150亿美元,经常每天都有动辄一笔超过5000万美刀的看涨期权大单,我相信没有散户可以拿出单笔超过5000万美元的资金,还跑去买看涨期权。


所以结论非常明确,这一轮的史诗级逼空,实际上就是机构之间的较量,投机的散户确实在这个过程中喝到了汤,但最后的结局其实已经基本注定,那就是当多空双方达成和解,他们会一起来收割散户。


最后这次事件会怎么收场,背后策划此次时间的真正获利者或许已经逐步的离开,大概率最后都会因为流动性的问题出现向下的反身反馈,最后市场会由于缺少看涨期权卖出者而丧失流动性,随着之前买入看涨期权的投资者获利平仓离场,同样也会形成卖出正股的反馈,最后入场的社交媒体里的热血散户也会仓皇出逃甚至踩踏。


明白了这次并不是因为散户,那接下来美股要怎么布局就一目了然了。短期内,空头因为需要平仓GME,还在被迫卖出多头仓位,大盘可能还会继续暴跌;多头则赚的盆满钵满,但大家都是机构,没有人希望大盘出现系统性危机,所以和解只是时间问题。


多头这个时候会怎么做?一个方法,让GME这些公司增发股票,空头就可以购买足够多的流通股,止损离场。另一个方法,多头卖出GME接近90%的流通股,瞬间市场上流通股多了几十倍,GME遭遇踩踏,空头低价平仓。无论哪种情况,受伤的一定是在高位追进去的散户。


当GME的逼空大战不再,大盘很可能已经跌了很多,好公司都在这个过程中顺势进行了回调,赚了很多钱的多头这个时候会干嘛,自然是去抄底FAAMG这些好公司,他们总不至于继续持有GME这些没有基本面的公司。更多的资金流向FAAMG,那大盘自然就会涨的更多,所以这一次跌下来,那绝对将会是非常好的抄底机会。


系统性危机没人愿意看到,毕竟多头虽然在GME上赚了不少钱,但这些相比他们在资本市场投入的钱,那其实就毛毛雨。如果彻底掀掉桌子,那赚到的钱肯定是弥补不了崩盘造成的巨大损失。


再拿摩根大通来举例,GME即使涨到了1000美元,它的看涨期权顶多也就赚了5亿美元,但摩根大通管理着超过3000亿美元的资产,如果大盘暴跌20%,它将会损失600亿美元,这笔账其实很容易算。


至于我敢肯定不会发生系统性危机,最重要的因素是因为这次的危机级别还不够。我觉得让标普500或者道琼斯指数真正出现像去年3月份大跌30%,只能是出现黑天鹅,也就是我们意料之外的事情,或者是政策面、整个货币政策等等出现急剧转向,这种情况才有可能会出现系统性风险。现在的轧空,连我们这些小散户都能预测结果,所以你懂的。


在前几周的文章,我一直强调一个观点,那就是美股今年是一个不太容易赚钱的牛市,但这仍然会是牛市,因为流动性实在太泛滥了。


原本机构预测标普今年能涨10%,如果按照前几周的走势,下半年都没什么可涨的了,但现在大盘如果真有机会被砸下来,那是不是意味着接下来10个月大盘可以有更大的上涨空间,这对我们来说是不是机会?


所以,从现在开始,大家没必要过于惊慌,短期可能会在逼空大战的影响下继续暴跌,毕竟现在GME仍然有超过80%的流通股被做空,没有监管机构出手的前提下,多空双方暂时不会罢手,但下跌的越多,后续我们盈利的空间也就越大。


风险与危机总是并存的,如果去年3月没有那连续数次的熔断,大盘也不会在接下来半年表现那么强劲,这一次如果真能引发短时间内的恐慌性抛售,对我们何尝不是一个机遇。做好风险对冲,然后找准机会抄底,下半年赚钱就是如此简单。


当然,在当前这样的市场,并不是什么股都可以去抄底,我们一定要擦亮自己的眼睛。如果大盘出现无差别的恐慌性抛售,你应该仔细审查下自己的持仓,当好公司和差公司一起暴跌的时候,你唯一应该做的那就是调仓。


想象一下这样一种心态,很多人之前都想抄底台积电,但过去一个月涨的实在太多了,彻底没法下手,这个时候终于跌了下来,终于有机会抄底了。很多机构可能把差公司的仓位割掉,迅速换到台积电。


周五的ARK其实也就是类似的操作,它卖出了PINS、ROKU、PYPL等公司仓位,然后基本全部用来去加仓特斯拉去了。这个行为对不对,我不去评判。只想说一个事实,那就是机构正在借这次调整的机会,积极的进行调仓,把仓位集中到更看好的公司上去。


最终的结果就有一个,当大盘反弹回到历史新高的时候,好公司因为有更多的资金流入,会不断创历史新高,并且比暴跌之前还要涨的更高,而差公司可能仍然会在低位趴着。美股终究会强者恒强,所以珍惜这次机会。


那么我们要抄底哪些板块?其实这个财报季已经明确告诉我们答案了。


1、社交媒体广告。Facebook的财报远超预期,预示着全球数字经济实现了强劲的复苏,那么同样在这条赛道的谷歌、Twitter、Pins、SNAP等公司,大概率业绩是相当不错的。


2、苹果产业链。苹果的业绩远超市场预期,iPhone销量恢复强劲增长,SWKS的业绩炸裂,台积电订单也是爆发增长,这一切都预示着苹果产业链和5G芯片赛道业绩很好。


3、电商支付。MA和Visa的财报告诉我们,四季度美国电商增速超过40%,Facebook的财报也告诉我们线上电商广告增长喜人,所以电商也是相对比较确定的机会。


4、网络安全。微软的财报说四季度安全需求增长远超预期,俄罗斯的黑客和太阳风事件也在促进企业加大安全方面的支出,这也是相对确定的机会。


Fox business: Dave Portnoy slams Robinhood: Restricting trades was ‘flat out criminal’

Jan. 31, 2021

Here is the link. 

Barstool Sports founder and President Dave Portnoy weighs in on the GameStop stock price stock surge and how Robinhood and Wall Street have reacted to the short squeeze.

Equity research: The market plunges amid the Reddit rebellion

Jan. 31, 2021

Here is the link. 

Market plunge as speculative names get continually bid higher. With CNBC's Brian Sullivan and the Fast Money traders, Steve Grasso, Bonawyn Eison and Barbara Ann Bernard.

My notes:

  1. Short, long, sell long - Apple or other brand name - hedge fund
  2. Whack hedge fund - 130% short interest - raise money, sell what they can - Robinhood - limit 1 share / AMD, Starbuck, ...
  3. Regulation - not a fan - markets are speculating process - what the reason it is, regulate get-in/ get-out
  4. Apple - 140 -> 130, average Joe gets hurt - pension fund, and other fund
  5. Regulation - cost of borrowing - 120% annualized, return 100% for short, risk and reward - retail guy nailed this
  6. Long short fund is done - billion dollar fund - crowd those names - long volatility
  7. Save people when they hurting, not when they making money

 

CTRM stock: Jan. 31, 2021 - restriction is removed - 5000 shares hold

Yahoo -> Finance -> Conversations 

 The short volume ratio of CTRM is 23%.

• Given that Robinhood is playing a central role in retail investors pumping dark horse stocks and given that $CTRM is now a stonk, it’s a rare stock under $1.00 that fits the category.
• Average daily volume of $CTRM heading into February is still 2x normal levels.
• The anti-short position of the Wallstreetbets will now take on an anti-restriction movement and CTRM is likely a huge winner in that game.
• Castor Maritime saw a increase in short interest in the month of January. As of January 15th, there was short interest totaling 25,790,000 shares, an increase of 5,150.4% from the previous total of 491,200 shares.
• In terms of fundamentals, revenue has been increasing each year and the company is acquiring more ships.
• With a 52-week range of $0.11 to $2.60, it’s volatility is very appealing to invest in. One year ago the stock was $1.38, more than twice the current price.

Short interest - 120%

Hedge fund - 

Massachusetts secretary of state and Kevin O'Leary debate Reddit short squeeze

 Here is the link. 

The surge is shares of GameStop and moves Thursday by retail brokerages like Robinhood to restrict trading as a result is dominating the headlines this week. Both Interactive Brokers and Robinhood are planning to ease trading curbs Friday. This comes after Robinhood said Thursday it was raising more than a billion dollars from existing investors. It also drew at least $500 million on a line of credit from a group of banks in order to meet lending requirements from its central clearing house. William Galvin, Massachusetts secretary of state, and Kevin O’Leary, chairman of O’Shares ETFs and co-host of “Shark Tank," joined "Squawk Box" on Friday to debate whether Robinhood was right to take that move. For access to live and exclusive video from CNBC subscribe to CNBC PRO: https://cnb.cx/2NGeIvi Kevin O’Leary on Friday defended the right of retail investors to continue trading shares of GameStop, AMC Entertainment and other stocks that have been hyped online. In an interview on CNBC’s “Squawk Box,” the O’Shares ETFs co-founder said investors should be allowed to speculate freely — regardless of whether they end up losing their own money and regardless of whether hedge funds and other short sellers get slammed. “They’re learning about the risks of the market. ... We forgot to educate them in high school, so let them learn in the real world, which is even better,” said O’Leary, a businessman and investor on “Shark Tank.” “I think this is fantastic what’s going on. Leave it alone. It’s a great thing that’s happening here.” The Reddit-sparked frenzy in GameStop and other stocks, which has consumed Wall Street in recent days, delivers lessons for people on both sides of the trade, O’Leary contended. He said he hopes hedge funds and anyone who shorts stocks will think twice about doing so, knowing they could be vulnerable to an epic squeeze like the one with GameStop. Shares of the embattled video-game retailer surged as high as $483 apiece this month; as recently as September, they traded around $6 each. “You now run a new risk: that these effective social media vigilantes are going to come after you and squeeze you as a short,” O’Leary said, a reference to the popular Reddit forum WallStreetBets. “That’s going to make a lot of hedge funds think a second time before they try and go short stocks, which I think is great.” Short selling is a strategy in which an investor sells borrowed shares in hopes of buying them back at a lower price in the future. They return the borrowed number of shares and pocket the price difference, if the stock actually falls. When the opposite happens, a short seller may try limiting their potential losses by purchasing the stock at its current higher prices. Perhaps more importantly, O’Leary said, the virality of the GameStop trade — aided partly by zero-commission brokerage apps such as Robinhood — has sparked an interest in investing that might not otherwise have been there. Some critics of the recent action have argued that better protection needs to be in place to prevent novice investors from being burned if the stock price collapses. O’Leary acknowledged newcomers to the market who join the speculative party may end up losing money, but he said “every investor loses money.” “The bottom line is, when you put money in harm’s way in the market, you risk it. That will always be the way” the market works, said O’Leary. “The definition of the market is speculation. When you buy and stay long a stock, you’re speculating the profits you hope are going to come finally appear, and you take that risk,” he added.

Take my notes:
  1. Millions people learn how to invest - starting from 20s;
  2. Let market do that, capital market is the market;
  3. Hedge fund manager - speculation - live under speculation
  4. Gamestop executive - pivot - Netflix - You have ideas - raise capital now


O'Leary: Kevin O'Leary DESTROYS Mainstream Media on WallStreetBets

Jan. 31, 2021

Here is the link. 

Kevin O'Leary DESTROYS Mainstream Media on WallStreetBets

Nok stock: Feb. 4 earning day | 2000 share/ person Robinhood - restriction relaxed | 4.6/ share -> 10/ share

Jan. 31, 2021


Yahoo -> Finance -> Conversation 

If u compare to Qualcomm its very interesting...around the same revenue, Nokia Balance Sheet is much better, Nokia has more valuable patents, Nokia is more diversified n Qcom has more profits..Nokia is in a turn around phase n I expect a huge increase in profits upon great execution...the Market Caps of each are Nokia $25B n Qcom $147B...this is def where AMD market cap was $15B n Intel $300B...now the Market Caps are AMD $100B n Intel $240B!!! Nokia has so much upside potential...Wallstreet is missing the boat!!!!!

Correction Qcom market cap is $177B!!!!

BlackRock Inc. ownership in NOK / Nokia Corp.
2021-01-29 - BlackRock Inc. has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 333,048,530 shares of Nokia Corp. (US:NOK). This represents 5.9 percent ownership of the company. In their previous filing dated 2020-02-05, BlackRock Inc. had reported owning 311,907,753 shares, indicating an increase of 6.78 percent.

Reddit

Here is the link. 

NOK PLAY:

Here’s how it works. YOU DECIDE if you want to take part.

1.It’s not a short squeeze like GME. Get that out of your head.

2.It’s a value/momentum play. The value part is just normal granny&grampa investing. See a good company going cheap, buy and hold. Tell your mom, dad, granny and grampa, cousins, relatives, friends.

3.The momentum part is the crazy part, and if it works the share will SKYROCKET as long as YOU DON’T SELL. GME is the biggest short squeeze in history, the NOK play could be the biggest value buy in history.

4. The beauty of it is that it works because Wall St is dumping NOK irrationally. That’s why the price is going down (slowly). They think they’re attacking us and slowly winning, but they’re giving us a value share cheap = their money, our pockets. By the time they realize what we did, it will be too late.

5. Don’t panic, and keep buying the dumps (if you think the company has value), and if we hold the line you could see a miracle.

The company is healthy, has good financials, it’s a market leader in 5G (it’s main competitors are Huawei and Ericsson, they have about the same market share share of 5G) a lot of potential to be the company that builds 5G for a large part of the world. NOK is currently trading at a standard price for the value it holds. It is not a bubble.

Here’s Nokia’s 5G contracts: https://www.nokia.com/networks/5g/5g-contracts/

Here’s Bloomberg shitting bricks that we’ve realized that Nokia is a value bet: https://www.bloomberg.com/opinion/articles/2021-01-28/gamestop-may-be-a-reddit-wallstreetbets-game-but-nokia-sure-isn-t

Nokia also just unveiled new 1tb tech, the thing AFTER 5G. First on the world. They have it, they’re showing the world it works. Here is their press release from Wednesday: https://www.nasdaq.com/press-release/nokia-and-elisa-push-network-boundaries-with-worlds-first-1t-deployment-2021-01-27

They are so trusted that NASA got them to build a cell network on the MOON. Literally. If you’re NASA, would you hire your retard uncle Earl to build cell towers on the moon? No, you hire someone who CAN ACTUALLY DO IT. Imagine what it takes to build something really big and complicated on the moon? Now imagine who’s the likely guy who can do it. That’s right, NOKIA. Here they are, going to the moon: https://www.nokia.com/about-us/news/releases/2020/10/19/nokia-selected-by-nasa-to-build-first-ever-cellular-network-on-the-moon/

If the Huawei 5G war continues, who do you think US and Europe is going to back, especially since NOK already has the next tech, owns a bunch of patents, is from FINLAND that has never tried to take over the world and has a brand that EVERYONE who lived in 2000s remembers?

CNBC: GME-CNBC | Chamath | Interview | Chinese translation

 Jan. 31, 2021

Here is the link. 

  1. Hedge fund analyst - retail investor can do the same work
  2. 120 million - social chat - 
  3. 140% short interest on gmo stock - get the table of stocks with percentage short interest 
  4. Momentum - hedge fund - analyst research - actually they do the research - distribution - one end - fundamental - dirty secret - packing order - Melvin capital
  5. Melvin capital - sort of giant in my era - trade copied by all other funds - organized - wall street bet
  6. Distinguish - no edge - bag holder of wall street - retail - bag holder ? 
  7. Responsible - tweet about it - get involved in yourself 
  8. Trades - get hurt - long gone - message 2008 - joke - 
  9. TESLA - retail investor - every single hedge fund - innovation, growth, fundamental world - try to organize to against it 
  10. Mechanics - market netural - 10 billion - 100 billion notion of exposure - not fair to retail investor 
  11. 2008 - government bailout - retail investors - baby and take guns out of baby 
  12. Elon Mark - twitter - gamestop - 350/ share - 
  13. Put positions - 125,000 dollars position - used to learn - modern trading era - setup mathematical sense
  14. 120% shares - way to allow it happen
  15. Allow hedge fund manage - hedge fund manager -> broker -> trade in retail billion - hedge fund trillion dollars 
  16. Wall street journal - wallstreetbets - Melvin - interesting bet 
  17. twitter - Follow Chamath - get some tips about stock market 
  18. Organize capital - defend - against loss - 
  19. Made money to pay student loans - They try to come out to pay off student loans
  20. Well-known hedge fund manager - went along - fundamental case - take the trade - hurt short - 
  21. Different - ideal dinner - people get together - collaborate together 
  22. Courage - it is wrong - what is difference - modern way about dynamic ...
  23. People follow the trade - what should we do? Do not allow retail investor to participate 
  24. ETF, passive fund, do not allow hedge fund - about poverty 
  25. Wall street casino - example - massive over-sell the company, 40% does not exist - squeeze - retail - pay the price 

Saturday, January 30, 2021

Leetcode discuss: 259. 3Sum Smaller

Jan. 30, 2021

Here is the link. 

C# | Sorting | two pointer sliding window

Jan. 30, 2021
It is easy to write a brute force solution using O(N^3), N is the length of the array.

In order to lower the time complexity to O(N^2), I thought about a few minutes, and it is hard to figure out any given two numbers in the array, how many numbers are available for k - twoSum starting from given index in the array, whereas twoSum is the sum of the first two numbers. It is hard to come out O(1). One of ideas is to preprocess the array and try to explore the absolute value's upper bound value 100 in the array.

I think that it is better to sort the array, and then the problem should be easier to come out.

Case study
Input: nums = [-2,0,1,3], target = 2
Output: 2
Sort the array, so the sorted array is [-2, 0, 1, 3].
Work on three numbers, first number index's variable first = 0, second variable = 1, third = 3, since 0 + 3 = 3 < target - (-2) = 4, so second = 1, there are two options for the third number. Add two to count variable.

Next move second variable to 2. Skip rest of steps. 


public class Solution {
    public int ThreeSumSmaller(int[] nums, int target) 
    {
        int count = 0;
        Array.Sort(nums);
        var length = nums.Length;
    
        for(int first = 0; first < length - 2; first++) 
        {
            var second = first  + 1;
            var third  = length - 1;
            
            while(second < third) 
            {
                if(nums[first] + nums[second] + nums[third] < target) 
                {
                    count += third - second;
                    second++;
                } 
                else 
                {
                    third--;
                }
            }
        }
        
        return count;
    }
}

Leetcode discuss: Longest Palindromic Substring

 Here is the link. 

First practice | 2015-6-15 | C# | Dynamic programming

Jan. 30, 2021
I am working on preparation of Microsoft online assessment, and then work on a list algorithms on leetcode (5, 15, 23, 34, 38, 46, 49, 124, 127, 218, 240, 259). I had chance to review my own code written back in 2015 June 15.

Case study
It is hard to define a smart subproblem to avoid redundant calculation. The dynamic programming algorithm should be easy to write after the subproblem is clearly defined.

I thought about using two dimension array to market start and end position. But how to work on another subproblem? I could not figure out using length of the substring as a variable, and start from substring's length from 1 to length of the array.

Facts to review:

  1. All substrings with one char is palindromic;
  2. Any substring with length 2 should be easily checked if it is palindromic;
  3. Any length after 2 should be easily defined by checking two ends of substring and then a subproblem.

Highlights of my code review:

  1. I thought about how to solve the problem using two dimension array, but I could not figure out the idea in detail;
  2. The idea is simple, two dimension array one is start position, and second one is end position of substring.
  3. The challenge part is to start from length of substring, from 1 to n whereas n is the length of the string.

Time complexity:
Linear time O(N) - N is the length of the array

The following code was my practice back in 2015 June 15. I just could not believe that the algorithm is still challenge for me to figure out in less than 15 minutes.

public class Solution {
    public string LongestPalindrome(string s) {
        if (s == null)
		        return null;
 
	        if(s.Length <=1)
		        return s;
 
	        int maxLen = 0;
	        String longestStr = null;
 
	        int length = s.Length;
 
	        int[][] table = new int[length][];
            for (int i = 0; i < length; i++)
                table[i] = new int[length]; 

            //every single letter is palindrome
            for (int i = 0; i < length; i++)
            {
                table[i][i] = 1;
            }

	        //printTable(table);
 
	        //e.g. bcba
	        //two consecutive same letters are palindrome
	        for (int i = 0; i <= length - 2; i++) {
		        if (s[i] == s[i + 1]){
			        table[i][i + 1] = 1;
			        longestStr = s.Substring(i, 2);
		        }	
	        }

	        //printTable(table);

	        //condition for calculate whole table
	        for (int l = 3; l <= length; l++) {
		        for (int i = 0; i <= length-l; i++) {
			        int j = i + l - 1;

			        if (s[i] == s[j]) {
				        // how to ensure that table[i+1][j-1] is calculated before table[i][j] because the first one's length is j-i-2 whereas the second one is j-i. So, it is in the order. 
                        table[i][j] = table[i + 1][j - 1];

                        if (table[i][j] == 1 && l > maxLen)
                        {
                            longestStr = s.Substring(i, j + 1 - i);
                            maxLen = j + 1 - i; 
                        }
			        } else {
				        table[i][j] = 0;
			        }
			    
                   // printTable(table);
		        }
	        }
 
	        return longestStr;
    }      
}

Weekend: Algorithms to review - Jan. 30, 31, 2021

Leetcode 

5, 15, 23, 34, 38, 46, 49, 124, 127, 218, 240, 259

Here is the link.