There has been a significant increase in the inflow of notable ETFs recently. The funds that have seen the highest inflows are SPY, MSFT, AAPL, and GOOG. This surge in inflow has been detected on the Nasdaq exchange. Investors are showing strong interest in these ETFs, which include popular tech companies like Microsoft, Apple, and Google. The inflow of funds into these ETFs indicates a positive sentiment among investors towards these companies.