If I had bought BLK
If I had bought BLK
Dates within the last week use the minute candle — accurate to the minute of purchase.
Ready examples: $100 put into BLK
a week ago-1.4%$100 → $99
a month ago+9.3%$100 → $109
since our history starts, June 22, 2026+9.9%$100 → $110
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying BLK
Over the last 64 days BLK closed between $953.68 (June 29, 2026) and $1,182.9 (August 15, 2026). One hundred dollars put in at the low would be worth $121 today; at the high, $97. The current price $1,152.2 is above 52 of those 64 daily closes, so a purchase on a random day of that stretch would be in profit 81% of the time — fees aside.
A typical day moves BLK by 2.6%: a $1,000 position swings about $26 a day.
Low of the stretch$953.68 · $100 → $121
High of the stretch$1,182.9 · $100 → $97
Share of profitable dates81% · 52/64
The same calculation for neighbouring instruments
Calculators for other instruments in the “company stock” category.