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Anyone reading this should take it with a grain of salt. I’m just documenting a few useful things to understand the stocks. But being able to reason the data does not give one the power to predict market, it only makes one feel more comfortable making choices (well, maybe).




Trade what you see, not what you think. Avoid confirmation bias.

TODO: 1. Catagorize by purposes. 2. also think about when to which ones. 3. what each indicator can tell you.

  • Moving Average (MA)
    • Simple Moving Average (SMA)
    • Exponential Moving Average (EMA)
  • RSI
  • MACD
  • Stoch
  • Bias
  • ATR


Option is risky. Start with money you are okay losing.

Option contract has value. It is a different market. It goes up or down more dramatically than the normal stock price: several parameters (e.g., IV, greeks) will amplify the change.

One thing I realize after playing with options is that some people do not really wait until Expiry Day to close the position. They might sell the option contract before the expiry date, which might produce more profit (also loss more) than just exercising the options.

It takes a seller and a buyer to complete a transction. For some low liquid stock/option, you might not be able to find a buyer. You must pay attention to this if you are betting able to re-sell the options.

Market maker (MM) will sell whatever ridiculous options. But they will in turn use option/stock to hedge, which in turn create some volality in the stock market.

Unusual Whales

Some useful tips:

  1. Whales come and go, they gamble as well.
  2. Look for high VOL/OI ratio (maybe larger than 5?)
  3. The bid/ask spread should be small. Smaller the better. It also means more volumn.
  4. Pay attention to IV. Many people suggest IV < 100%
  5. Pay attention to the strike price and date. I haven’t fully grasp the core idea. Yet to learn.
  6. Mon/Fri close/mornings options somehow have higher average max return.
  7. Whale Winner and Loser MEGA Report

Read more tactics here:


I’m mostly using TradingView, half an hour is enough to learn the basics. I highly recommend it if you also know a bit programming. It allows you to express things in Python.

I sometimes check for unusual options, which maybe potential insider tradings.

I also use

Behavior Economics

This topic is really interesting. I may able to document more later.

Last update: March 12, 2021