Friday opened mid range and closed on top of the range. Here's the last prior occurrences. Personally, I wouldn't read too much into it for long term price action, but it does appear like it's a good set-up for a move higher the next day. Note however that a gap up the next day appears to be sold. To me, it looks like we're stuck in a range here, so I'm just going to see if we can see a move back to mid-range or higher, say 4120, and then take it from there.
I'm not a candlestick fan, and certainly not a single candle, but here is what Bulkowski has to say about Fridays candle... The dragonfly doji is an interesting name for a candle that is supposed to act as a bullish reversal. It is a reversal candle, but only half the time. Random, in other words. If you see a dragonfly doji in the bush, do not be frightened. The 10-day performance after the breakout ranks it 98th out of 103 candles, where 1 is best. In other words, ignore it. Its bite is usually not fatal. Usually. https://thepatternsite.com/Dragonfly.html
The 390 minute time frame doesn't appear to be giving accurate info. The close Fri was less than 2 pts above the open.
Was your candle from the actual SPX index? ES on Friday closed 16:00 at 4088.25. 12 points above the Open. I don't pay close attention to the differences between ES/SPX open/closing prices (and not forgetting the cash/futures premium), but there will often be some differences. Roughly, it should be similar, though.