Julia's coding blog - Practice makes perfect
From January 2015, she started to practice leetcode questions; she trains herself to stay focus, develops "muscle" memory when she practices those questions one by one. 2015年初, Julia开始参与做Leetcode, 开通自己第一个博客. 刷Leet code的题目, 她看了很多的代码, 每个人那学一点, 也开通Github, 发表自己的代码, 尝试写自己的一些体会. She learns from her favorite sports – tennis, 10,000 serves practice builds up good memory for a great serve. Just keep going. Hard work beats talent when talent fails to work hard.
Monday, April 27, 2026
New trading system | CE exit | LuxAlgo indicators
It is important for me to learn how to control risk, one of ideas is to implement block order when an order is placed.
The indicator helps me to set take profita and stop loss automatically, I am still testing this indicator and see if it is perfect for me to adopt those prices. The indicator is called Trade Exit Calculator
The interface is the following:
持续发债投入AI,甲骨文160亿美元数据中心融资落定
经过数月的谈判,云服务供应商甲骨文(Oracle)终于完成一项巨型数据中心融资计划。
近日,数据中心开发商Related
Digital发布声明称,其为甲骨文建造的一项总额达160亿美元的大型数据中心方案已经筹集到了资金。此次融资包括Related
Digital及黑石集团旗下基金提供的股权投资,以及由太平洋投资管理公司(Pacific
Investment Management Co.)管理的基金和账户主导的固定利率长期债务融资。
据介绍,该笔融资将用于在密歇根州萨林镇建设数据中心园区,甲骨文公司将成为该园区的主要租户。美国银行(Bank
of America)负责销售总计140亿美元的债券,其中,太平洋投资管理公司(Pacific Investment
Management Co.)作为核心投资者认购约100亿美元,其余部分由其他机构投资者承接。
据外媒报道,该批债券通过美国证监会“144A规则”私募发行,仅面向大型机构投资者出售。相关票据将于2045年到期,发行价格为面值的98.75%,票面利率为7.5%。另有外媒报道称,参与本次债券项目的投资者曾要求获得更高的溢价,因为其质疑甲骨文能否提供足够的担保。
甲骨文云基础设施执行副总裁Mahesh
Thiagarajan表示:“我们在萨林镇数据中心取得的快速进展,凸显了建设美国下一代AI(人工智能)基础设施的紧迫性和规模之大。与合作伙伴携手,我们不仅是在建设一座数据中心,更是在创造高质量就业机会、投资我们所运营的社区,并推动长期经济增长。”
2025年10月,OpenAI、甲骨文与Related Digital宣布,将在美国密歇根州联合建设一座超大规模数据中心项目,规划装机容量超过1吉瓦(GW),作为核心算力基础设施支持AI训练与推理。
分析指出,随着越来越多的大型科技公司依赖债务推动AI投资热潮,华尔街的审查也在变得愈发严格。自去年以来,面向超大规模云厂商项目的全球债务融资规模已超过2900亿美元。
在科技巨头竞相举债构建AI基础设施的背景下,甲骨文成为了华尔街用于关注AI信用风险的核心参照坐标。甲骨文在美国主要公司债券指数中发行的债券规模约为1200亿美元,今年2月初,公司刚发行了250亿美元的债券。
另一边,甲骨文正在通过裁员“弥补”巨额AI支出。今年3月底,甲骨文宣布在全球范围内进行裁员,将有3万名员工受到影响。公司在内部信中写道,由于组织结构调整,需要进行运营整合,因此启动了大规模裁员。公开资料显示,截至2025年5月,甲骨文拥有16.2万名员工。
4月23日,摩根士丹利分析师团队在研报中指出,尽管甲骨文上一财季在营收和经营利润方面表现强劲,但毛利率同比下降约590个基点,主要由于产能扩张带来的成本压力。分析师维持对甲骨文股票“与大盘持平”评级,将目标价从213美元下调至207美元。
Adobe Downgraded Despite AI Updates. The Stock Drops. — Barrons.com
Adobe Downgraded Despite AI Updates. The Stock Drops. — Barrons.com
By Angela Palumbo
Adobe stock was down Monday after a Mizuho analyst downgraded shares of the creative software company, citing concerns that growth will remain pressured due to continued competitive pressures.
Gregg Moskowitz downgraded shares of Adobe to Neutral from Outperform and cut his price target to $270 from $315 on Monday. He wrote in a research note that even though the company responsible for Photoshop and Lightroom has expanded artificial intelligence capabilities and monetization opportunities, risks remain.
"ADBE's consumer and SMB-centric [small and medium business-centric] tiers, which we estimate at >65% of total ARR [annual recurring revenue], face intensifying competition from AI-native platforms and low-cost design tools," Moskowitz wrote.
Barron's has reached out to Adobe for comment. The stock dropped 2.2% to $240.16 on Monday.
Moskowitz's downgrade comes after shares of Adobe have fallen 31% this year. Many on Wall Street are worried that AI capabilities could eventually replace software offerings. Adobe is also dealing with competition from other tech companies releasing their own creative software, like Apple.
Adobe tried to assuage some concerns last week when it released an AI agent platform called CX Enterprise, which is designed to help companies boost sales, improve customer experience, and quicken time-intensive tasks. Adobe stock rose 1.7% following the announcement of that platform.
Write to Angela Palumbo at angela.palumbo@dowjones.com
This content was created by Barron's, which is operated by Dow Jones & Co. Barron's is published independently from Dow Jones Newswires and The Wall Street Journal.
Tech Qualcomm up 7% on report it’s partnering with OpenAI on smartphone AI chip Published Mon, Apr 27 20268:09 AM EDTUpdated 5 Hours Ago
Qualcomm up 7% on report it’s partnering with OpenAI on smartphone AI chip

- Qualcomm is set to partner with OpenAI to develop smartphone processing chips, an analyst said on Monday.
- Qualcomm shares rose on reports of the news.
- OpenAI is planning to build a smartphone device that is entirely run by AI agents.
Qualcomm shares rose on Monday following reports that it’s partnering with OpenAI to create smartphone processing chips to advance the AI firm’s hardware ambitions.
The U.S. smartphone chipmaker is set to work alongside Taiwanese semiconductor firm MediaTek to develop the chip for OpenAI, with Chinese manufacturer Luxshare co-designing and building the device, Ming-Chi Kuo, an analyst at TF International Securities, said on X on Monday. Mass production of the device is expected in 2028, according to Kuo.
Qualcomm was up 7% just after the opening bell. The stock is down 13% so far this year.
Qualcomm, OpenAI, and MediaTek did not immediately respond to CNBC’s request for comment confirming the partnership.
“Only by fully controlling both the operating system and hardware can OpenAI deliver a comprehensive AI agent service,” Kuo said in the post. “The smartphone is the only device that captures the user’s full real-time state, which is the most important input for real-time AI agent inference.”
He explained that smartphones will remain the “largest-scale device category” in the immediate future, and it makes sense for OpenAI to develop a device that is entirely run by AI as the firm has accumulated user data over the years.
“Smartphone hardware is already highly mature, so OpenAI can work with the supply chain to develop the device,” Kuo said. “On the business model side, OpenAI may bundle subscriptions with hardware and build a new AI agent ecosystem with developers.”
OpenAI smartphone ambitions
Qualcomm designs chips and wireless technology for smartphones and other devices, and is best known for its Snapdragon processors, which power many Android phones, and its modem technology that enables mobile connectivity like 4G and 5G.
It likely comes as no surprise that OpenAI would partner with the firm to help realize its smartphone plans, after it acquired Apple’s design chief Jony Ive’s startup io for $6.4 billion in equity last year to design new AI devices expected to be revealed in two years.
Altman said last year that the devices OpenAI is designing with io will be different from smartphones. It will be able to “know everything you’ve ever thought about, read, said,” he said, comparing it to walking through Times Square.
“You can then go for a vibe that is not like walking through Times Square and getting bumped into and having all this stuff compete for your attention,” Altman said. “But, like, sitting in the most beautiful cabin by a lake and in the mountains and sort of just enjoying the peace and calm.”
Additionally, it was reported in September that Luxshare signed a deal with OpenAI to produce consumer devices.
Saturday, April 25, 2026
new high bar 1% down stop loss indicator
A "new high bar 1% down" stop loss indicator is a trailing stop mechanism designed to protect profits by tracking the highest price reached since a trade began and triggering an exit if the price drops by a specific percentage (e.g., 1%) from that peak.
- Percent Drop from Highest High (by BigJasTrades): This TradingView indicator plots the highest high from a set number of bars ago and calculates a trailing stop loss a specified percentage below that line.
- High/Low nBar Trailing Stop: An indicator that acts as an aggressive, one-bar trailing stop loss that moves upward, capturing a portion of a move by following the most recent high in a trend.
- Market Structure Based Stop Loss: A TradingView tool that provides objective, "guess-free" stop loss levels based on current volatility and structure.
- Identify New High: The indicator constantly updates to find the highest price bar since the entry point.
- Calculate Stop Loss: It calculates a 1% (or custom percentage) decrease from that maximum high.
- Trail & Exit: The stop loss level only moves up with new highs; it never moves down. If the price falls to or below this calculated line, the indicator signals a stop-loss exit.
Oliver Kell’s EMA strategy, known as the Cycle of Price Action
- 10-day EMA (Fast): Acts as the primary guide for short-term momentum and initial price support during strong trends.
- 20-day EMA (Slow): Serves as a "rising floor" and the secondary level of support for intermediate-term trends.
- 50 & 200 SMAs: Used as longer-term filters to ensure the overall trend alignment matches institutional buying patterns.
- Wedge Pop: The initial breakout signal where the price snaps back above both the 10 and 20 EMAs on high volume after a period of downward sloping averages.
- EMA Crossback: The first pullback to the 10 or 20 EMA after a Wedge Pop. This is considered a low-risk entry point as the averages begin to "stack" and act as support.
- Base n' Break: Occurs when a stock consolidates sideways near the EMAs for 3–5 days (forming flags or pennants) before breaking out again on volume expansion.
- Exhaustion Extension: A signal to take profits or get defensive when the price becomes significantly extended (vertically far) from the 10-day EMA.
- Directional Bias: Stay aggressive when the price is supported above rising EMAs and defensive when resisted by declining ones.
- Risk Management: Position sizes are typically kept small (1–2% total capital risk per trade), with hard stop-losses often set below the 10-day EMA or recent consolidation lows.
- Sell Signals: A primary exit trigger is a Trend Break, which occurs when the price closes below both the 10 and 20 EMAs after a sustained uptrend.
