Mistake 1, critical severity
Buying Calls After a Stock Has Already Rallied
Seeing a stock up 10% and buying calls because 'it is going higher.' The move already happened. IV is elevated. You are buying expensive options at the worst entry point.
The fix
If you missed the move, you missed it. Wait for a pullback to support before entering. Or use a bull put spread to sell elevated IV rather than buying it. The market offers new opportunities daily.
What it looks like. NVDA rallies 15% in a week. Buy calls 'to catch the rest.' NVDA consolidates for 2 weeks. Theta decay destroys the position. Eventually close for 60% loss. The move was over before you entered.
Mistake 2, critical severity
Abandoning Your Strategy for Hot Tips
Seeing others profit on social media and abandoning your tested strategy for their picks. Their results are cherry-picked. Your strategy was working. Now you are gambling.
The fix
Stick to your strategy. Log and review results monthly. Only modify your approach based on your own data, not someone else's highlight reel. Social media shows winners, never losers.
What it looks like. Consistent iron condor trader making 3% monthly. Sees Reddit post about 500% gain on meme stock calls. Abandons iron condors, buys meme calls. Loses 80%. Three months of profits gone.
Mistake 3, high severity
Oversizing Because 'This One Is Different'
FOMO leads to conviction that this specific trade is a sure thing, so you size 5-10x your normal position. When it works, you feel vindicated. When it does not, the damage is severe.
The fix
No trade is ever different enough to break position sizing rules. Max 2-5% risk per trade, always. The one time you oversize is statistically the one time it goes wrong because overconfidence correlates with late-cycle entries.
What it looks like. Normally risk $500 per trade. 'TSLA is definitely going up after this announcement.' Risk $5,000. TSLA drops 8%. Lose $3,500. Seven normal wins wiped out by one FOMO trade.
Mistake 4, high severity
Buying 0DTE Options Because of Social Media Hype
Seeing screenshots of 0DTE 1000% gains and jumping in. For every screenshot showing a win, there are 99 total losses. 0DTE is extremely high risk and requires professional-level discipline.
The fix
If you want to try 0DTE, allocate no more than 1% of your account per trade. Use defined-risk spreads. Treat it as entertainment, not a strategy. Your core strategy should fund your account.
What it looks like. See 0DTE SPY call making 800% on social media. Buy $2,000 of 0DTE calls. SPY reverses in the afternoon. Calls expire worthless. Lost $2,000 chasing a screenshot.
Mistake 5, medium severity
Opening Trades Without Analysis Because 'It Is Moving'
Buying options impulsively because a stock is making a big move right now. No analysis of IV, no strategy, no exit plan. Pure impulse driven by the fear of missing the move.
The fix
Implement a mandatory 10-minute waiting period before any unplanned trade. In that time, check IV rank, calculate risk/reward, and set profit target and stop loss. If it still looks good after 10 minutes, take it.
What it looks like. Stock gaps up 5% at the open. Immediately buy calls 'before it goes higher.' Stock fades back 3% by noon. Bought at the top with no analysis. Options lose 40% by close.