If I had bought XBI
If I had bought XBI
Dates within the last week use the minute candle — accurate to the minute of purchase.
Ready examples: $100 put into XBI
a week ago-1.1%$100 → $99
a month ago-2.1%$100 → $98
three months ago-5.0%$100 → $95
since our history starts, July 9, 2026-6.8%$100 → $93
Dates within the last week use the minute candle — accurate to the minute of purchase.
A year of buying XBI
Over the last 94 days XBI closed between $144.72 (August 1, 2026) and $169.61 (August 19, 2026). One hundred dollars put in at the low would be worth $106 today; at the high, $90. The current price $153.35 is above 20 of those 94 daily closes, so a purchase on a random day of that stretch would be in profit 21% of the time — fees aside.
A typical day moves XBI by 2.3%: a $1,000 position swings about $23 a day.
Low of the stretch$144.72 · $100 → $106
High of the stretch$169.61 · $100 → $90
Share of profitable dates21% · 20/94
The same calculation for neighbouring instruments
Calculators for other instruments in the “exchange-traded fund” category.