If I had bought STM
If I had bought STM
Dates within the last week use the minute candle — accurate to the minute of purchase.
Ready examples: $100 put into STM
a week ago-11.6%$100 → $88
a month ago-25.6%$100 → $74
three months ago-26.6%$100 → $73
since our history starts, August 5, 2026-22.0%$100 → $78
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying STM
Over the last 93 days STM closed between $39.89 (November 5, 2026) and $58.37 (October 4, 2026). One hundred dollars put in at the low would be worth $103 today; at the high, $71. The current price $41.24 is above 1 of those 93 daily closes, so a purchase on a random day of that stretch would be in profit 1% of the time — fees aside.
A typical day moves STM by 6.5%: a $1,000 position swings about $65 a day.
Low of the stretch$39.89 · $100 → $103
High of the stretch$58.37 · $100 → $71
Share of profitable dates1% · 1/93
The same calculation for neighbouring instruments
Calculators for other instruments in the “company stock” category.