According to Eric Balchunas, ARGT (iShares MSCI Argentina ETF) is a key watch as he said it "could be up big" tomorrow and noted it has "already gone up a ton," linking to additional context from Geiger Capital (source: Eric Balchunas on X, Oct 27, 2025). ARGT provides equity exposure to Argentina via an MSCI-based approach, making the ETF highly sensitive to Argentina-specific headlines and FX moves that can drive gap risk and momentum continuation or reversals (source: iShares ARGT fund overview). For trading, the immediate takeaway is to anticipate potential wider bid-ask spreads and elevated open volatility if momentum persists, given the outsized move referenced by the source (source: Eric Balchunas on X, Oct 27, 2025). No direct crypto-market implications were cited by the source, and there was no mention of BTC or ETH linkage in the post (source: Eric Balchunas on X, Oct 27, 2025).