# SMC交易

ETH Three-Period Structure Projection: 15m Short + 1h About to Break BoS, Add Position or Take Profit?
Currently, ETH's 15m / 1h / 4h three-period structures are completely clear:
The 4H bullish trend remains unchanged, the 1H bullish structure is about to reach the key BoS support, and the 15m has entered a correction zone. Holding 15m-level shorts, now the most critical dilemma arises:
Once the 1H BoS structure is effectively broken, should we follow the trend to add more shorts or directly take profit and exit?
From the perspective of SMC structure logic:
1H BoS is the core defensive level