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Markets
UK vs US Stock Markets
UK and US stock markets offer different opportunities, tax structures, and regulatory environments. Understanding these differences helps you diversify globally and find the best opportunities wherever they exist.
Key Differences
🇬🇧 UK (LSE / AIM)
- ISA: tax-free gains & dividends
- Stamp duty: 0.5% on purchases
- AIM stocks: inheritance tax benefits
- Net-net rich on AIM
- Prices in pence (e.g. 184p = £1.84)
- Insider disclosures via RNS
🇺🇸 US (NYSE / NASDAQ)
- Deeper liquidity, more stocks
- No stamp duty equivalent
- 15% dividend withholding for UK investors
- SEC Form 4 insider disclosures
- More analyst coverage
- Extended trading hours
DipBuster tracks both markets. UK investors can buy US stocks through most UK brokers, though there may be FX conversion fees. Consider holding US stocks in a GIA and UK stocks in an ISA for optimal tax efficiency.