US stock futures extended some of Thursday's losses before bouncing back as Wall Street gets ready to wrap up another week of tariff-fueled turmoil. Futures tied to the S&P 500 (ES=F) were up 1.2%, those on the tech-heavy Nasdaq (NQ=F) popped 1.5%. Dow Jones Industrial Average futures (YM=F) climbed 1% The major stock indexes are reeling from whiplash toward the end of another week roiled by President Trump's fast-moving tariff policy, after pulling off historic gains during Wednesday's session followed by subsequent plunges on Thursday. The S&P 500 (^GSPC) has...