I thought I had placed my order for 200 sh. sold 1/2 is 1.43. I let the other "100" sh ride up to 1.48. When I placed the sell I was notified I didn't have the shares. Turns out that when I switched between Schwab and Thinkorswiim the shared defaulted to 100. Just lost 50% of the gain by not noticing that entry mistake.