$Spdr Series Trust Spdr S Tr/S&P Transn Etf (XTN.US)$ My favorites are blue chip/large cap stocks and I've made some nice returns by doing so. They are not risk-free but way less risk compared to small caps/short squeezes. The strategy is literally buy low, sell high lol. Study the daily chart and find the lows and high of the stocks. Some stocks like to bounce within a range for weeks or even months.
A super great example is TXN. It reached 197 in April and it usually bounces down to its lows (174-180) and bounces back up to 190s. It has repeated this pattern for MONTHS and just yesterday, it hit 186 and today it bounced right back up.