If I had bought ISRG
If I had bought ISRG
Dates within the last week use the minute candle — accurate to the minute of purchase.
Ready examples: $100 put into ISRG
a week ago-4.1%$100 → $96
a month ago+12.1%$100 → $112
since our history starts, June 16, 2026-9.5%$100 → $90
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying ISRG
Over the last 70 days ISRG closed between $332.48 (July 23, 2026) and $434.58 (July 6, 2026). One hundred dollars put in at the low would be worth $114 today; at the high, $87. The current price $377.84 is above 26 of those 70 daily closes, so a purchase on a random day of that stretch would be in profit 37% of the time — fees aside.
A typical day moves ISRG by 4.1%: a $1,000 position swings about $41 a day.
Low of the stretch$332.48 · $100 → $114
High of the stretch$434.58 · $100 → $87
Share of profitable dates37% · 26/70
The same calculation for neighbouring instruments
Calculators for other instruments in the “company stock” category.