Thanks. And, while I agree this was a highly speculative trade. I'd like to think it had a bit better odds than a coin flip. ...
Hard to say. Where I come from is this:
The price you bought at was determined by at least hundreds if not thousands of people. It was the net of all their opinions, pro and con. Most of those people are professionals who have far more knowledge of the stock, its behavior, and the market than you will ever have. Some of those "people" are computers who have computed the probability of success at that price including perfect memory of the stock's history of bumps, dips, spikes, doodles, and dives. So, compared to all that, I would say that your decision was at least close to being a wild-ass guess.
(Note that is is not an argument for the Efficient Market Hypothesis. While the EMH is probably a major factor, there are also emotional factors that are part of the price determination. But in the end, the market experts have voted.)
The one non-trivial advantage you do have is the tiny size of your trade. You can take advantage of smaller moves than a professional can. I don't know that this advantage changes the win/lose probability though.
Charles Ellis, in
Winning the Losers Game, argues that all the wisdom, expertise, and information that the professionals have basically cancels out and we are left with random walks. (Ellis was on the board at Vanguard, as served on multiple big-name investment committees including chairing the investment committee at Yale. He has also taught graduate-level investment courses at Yale and Harvard.) To me, the random walk explanation is the most plausible one on which to base trading (not investing) decisions. IOW, I don't trade.
But trading will be with us forever, as will casinos and lotteries. Humankind is an optimistic and greedy species of mammal.