Yes, there has been strong momentum up through the morning but I remain skeptical as to this being a start of something, but rather I think it more likely an end. While above 4075 SPX, I have a minor bias towards testing 4099 to 4102 but I caution against being eager to chase this higher. There is a gap to fill around 4090.50 SPX and that might be good enough. Bears begin to get traction under 4075 and fully take control under 4040.
Here is the same idea but in S&P 500 futures. Note the doji candle forming.
Have a good weekend.