TJX. Breakdown of the 50 SMA support?

In the chart of TJX (TJX Companies Inc) between points 1 and 5 we have a behaviour of higher lows and higher highs, but in point 6 the highs behaviour is violated with a high lower than the previous and in point 7 the lows behaviour is violated with the price of the stock falling slightly below the previous low. So we have a sign of a trend change.

The RSI crossed below the fifth line, also a sign of a trend change. A important point now is the 50 Simple Moving Average (SMA) and notice how the price closed almost equal to the value of the 50 SMA. If the price breakdown this support then the odds increase for a strong move down. A obvious stop loss for a short position is placed near the 28.8, i.e., the previous high.