Yes, your statement about the importance of charts AND L2 together are spot on. Also, what you said about the impact of someone dropping 50K or 50M into a pinksheet, and how that can affect the pps is on target. Pinksheets are far more affected by individual investors and MMs than are the big stocks. That is why the chart is not a reliable predictor for the next-day. However, I use charts intraday to aid me in making buy/sell decisions.
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