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.
Saturday, October 24, 2026
Friday, October 23, 2026
why crdo stock sliding down today? In chinese
主要下跌原因
Stock Market Today, Oct. 23: AT&T Slides on SpaceX Cell-Site Talks
Stock Market Today, Oct. 23: AT&T Slides on SpaceX Cell-Site Talks
Bloomberg's report of SpaceX negotiations for 80,000 cell sites reignited carrier-competition fears, sending wireless stocks lower, today, Oct. 23, 2026.
By Will Healy – Oct 23, 2026 at 5:05PM EST
AT&T (T-7.96%), a wireless and fiber telecom services provider, closed at $20.93, down 7.96%. Bloomberg's report on SpaceX's cell-site talks pressured the stock, and investors are now watching wireless competition and capital strategy.
Trading volume reached 84.6M shares, coming in about 88% above its three-month average of 45.1M shares.
How the markets moved today
S&P 500 (^GSPC-0.52%) fell 0.53% to 7,623, and the Nasdaq Composite (^IXIC-0.21%) slipped 0.21% to 25,955. In U.S. wireless telecommunications services and fiber broadband, Verizon Communications closed at $44.66, down 1.19%, while T-Mobile US fell 7.71% to $146.54 as concerns about carrier competition remained in focus.
What this means for investors
AT&T stock plunged after Bloomberg reported that Space Exploration Technologies is in negotiations to obtain access to around 80,000 cell sites, presumably to build America's fourth nationwide wireless network.
AT&T and its peers, Verizon and T-Mobile, have long operated on the premise that prospective new competitors would avoid entering the market due to the high likelihood of massive capital costs and low profit margins.
Now, SpaceX is blowing this theory out of the water. Additionally, with satellite coverage supplementing a terrestrial network, it would have a competitive advantage among customers who spend a lot of time in rural areas, likely placing further competitive pressure on AT&T.
These fears have also seemed to overshadow good news for AT&T. In its Oct. 21 earnings report, AT&T beat earnings estimates and raised its 2026 guidance. Additionally, NBT Bancorp bought 91,368 AT&T shares valued at around $2.23 million.
Admittedly, an added competitive challenge does not bode particularly well for AT&T. Nonetheless, AT&T provides a necessary service, and wireless customers tend to be sticky. Moreover, investors can buy AT&T stock now at an 11 P/E ratio and earn a 5.3% dividend yield, suggesting the Friday sell-off of the communication stock might be a buying opportunity.
Thursday, October 22, 2026
marketsmith rs rating github page free download
If you are looking for a free GitHub repository to replicate the Investor's Business Daily (IBD) / MarketSmith Relative Strength (RS) Rating (the 1-99 percentile score) or its visual layout, there are a few primary open-source projects you can download:
- What it is: A 4-in-1 tool containing customized MarketSmith-style bars, daily/weekly SMA/EMA, high/low points, and an integrated IBD-style RS Rating (1-99 score). [1, 2]
- How it works: It uses an auto-updating Python backend hosted on GitHub to process US stock data, matching the actual MarketSmith RS scoring with an average deviation of only ±3 to 5 points. [1]
- Download/View Code: Fred6725 / MarketSmith-Indicator-TradingView GitHub [1]
- Alternative (Python Backend only): Fred6725 / relative-strength GitHub [1]
- What it is: A Python script that downloads data directly from Yahoo Finance, measures yearly stock performance (weighting the most recent quarter double), and compares it against the SPY index to rank tickers into a percentile. [1]
- Output: Generates local spreadsheet files (
rs_stocks.csvandrs_industries.csv). [1] - Download/View Code: skyte / relative-strength GitHub [1]
- What it is: A Python-based screener that scans for stocks making new highs in Relative Strength and sorts them using the exact same calculation formula as the IBD RS Rating. [1]
- Download/View Code: iArpanK / RS-Screener GitHub [1]
- For TradingView scripts: You do not even need to install Python. Go to the GitHub page, open the
.txtor.pinecode file, copy the script, open the Pine Editor at the bottom of your TradingView chart, paste it, and click Add to Chart. - For Python programs (
skyteoriArpanK): Download the ZIP folder from GitHub, ensure you have Python installed, and runpip install -r requirements.txtvia your terminal to acquire the necessary dependencies (likeyfinance) before running the script. [1]
ketsmith rs rating, do blackstone investment company has measurement tool like rs rating for each stock?
No, Blackstone Inc. (BX)—the global alternative asset manager—does not have a proprietary stock-ranking or relative strength (RS) measurement tool like Investor's Business Daily (IBD) or MarketSmith. [1, 2]
- MarketSmith / IBD RS Rating: This is a quantitative technical analysis tool that ranks individual public stocks on a scale from 1 to 99 based on their 52-week price performance compared to the rest of the stock market. (Ironically, Blackstone’s own stock is tracked by MarketSmith and IBD, often earning high RS ratings). [1, 2, 3]
- Blackstone (BX): Blackstone is an investment firm and asset manager (handling private equity, real estate, credit, and hedge funds) rather than a retail stock-analysis platform. They do not publish a public stock-screening or relative strength ranking system for general equities. [1]
American Tower Corporation's towers
Wireless service providers, broadcasters, and other communication companies lease space on American Tower Corporation's towers. [1]
- AT&T
- Verizon Wireless
- T-Mobile
- American Tower acts as the landlord, owning the physical steel structures and leasing the underlying land.
- Carriers and tenants mount their own antennas, transceivers, and networking gear onto the towers to transmit wireless signals to customers.
AT& T uses crown castle tower or not
Yes, AT&T uses cell towers owned or operated by Crown Castle. [1, 2]
- The Tower Deal: In 2013, AT&T sold 600 towers and leased the rights to about 9,100 additional towers (roughly 9,700 towers total) to Crown Castle for $4.85 billion. [1, 2]














