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REDDIT

How does Vanguard calculate its ETF unit cost?

U
Apr 8, 2025 · 16:04

I’m trying to buy some S&P 500 ETF (VUAG) shares from Vanguard using their “Live price ETF” service. I’m in the UK, so this costs £7.50 per trade, they give you a quote and you can choose to accept/deny it. However, the cost per unit they are showing me in their quote is way higher than the current cost of the S&P 500.

I’m seeing a unit cost of £77.30 when the actual price of the S&P at this time is closer to £75. How are they working that one out?

It feels a little fishy. I’ll be 2% down before I’ve even got my money in the market.