If I had bought CMCSA
If I had bought CMCSA
Dates within the last week use the minute candle — accurate to the minute of purchase.
Ready examples: $100 put into CMCSA
a week ago+3.4%$100 → $103
a month ago+21.2%$100 → $121
since our history starts, June 15, 2026+13.0%$100 → $113
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying CMCSA
Over the last 71 days CMCSA closed between $21.97 (July 23, 2026) and $27.08 (August 24, 2026). One hundred dollars put in at the low would be worth $124 today; at the high, $100. The current price $27.16 is above 71 of those 71 daily closes, so a purchase on a random day of that stretch would be in profit 100% of the time — fees aside.
A typical day moves CMCSA by 2.0%: a $1,000 position swings about $20 a day.
Low of the stretch$21.97 · $100 → $124
High of the stretch$27.08 · $100 → $100
Share of profitable dates100% · 71/71
The same calculation for neighbouring instruments
Calculators for other instruments in the “company stock” category.