to stand, sit, or be astride (something)

to bracket (a target) with missiles, e.g. shells or bombs

to be on land on either side of (something)

The village straddles the frontier

NAmer to come down in favour of both sides of (the thing at issue)

archaic to stand or esp sit with the legs wide apart

A great pile of living embers diffused a strong and ruddy glow from the arched chimney. Before this straddled Dom Nicolas — Stevenson

a straddling stance or position

a financial contract or option giving the holder the double privilege of selling securities to or buying securities from the maker of the contract