With `data = FinancialData["GOOG", "OHLC", {{2009, 5, 1}, {2010, 4, 30}}];`, `CandlestickChart[data, ChartElementFunction -> "HLC", Frame -> True,
PlotRange -> {350, 650}, Frame -> True,
FrameTicks -> {{Range[300, 640, 40],
Range[300, 640, 40]}, {Automatic, None}}]` works