> So, unless you are a Spanish trader from the 16th century or have a book with fractional stocks from the 90s, HandsOnMoney will serve you well.

US treasury futures are still priced in 32nds of a dollar increments. Sorry, that's not true, they're quoted in 32nds, but sometimes priced in half-, quarter- or eighth-32nds. One might trade at 105-22.5, which means 105 and 45/64ths.

https://www.cmegroup.com/trading/interest-rates/basics-of-us...