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+6.2%$100 → $106
a month ago+1.4%$100 → $101
since our history starts, August 5, 2026-2.4%$100 → $98
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying STM
Over the last 47 days STM closed between $48.31 (September 16, 2026) and $57.48 (August 17, 2026). One hundred dollars put in at the low would be worth $107 today; at the high, $90. The current price $51.62 is above 24 of those 47 daily closes, so a purchase on a random day of that stretch would be in profit 51% of the time — fees aside.
A typical day moves STM by 3.4%: a $1,000 position swings about $34 a day.
Low of the stretch$48.31 · $100 → $107
High of the stretch$57.48 · $100 → $90
Share of profitable dates51% · 24/47
The same calculation for neighbouring instruments
Calculators for other instruments in the “company stock” category.