Spitballin' here. And the comments are just for free - and worth every penny you pay for them.
#1) The market is bullish. IMO it would take some time for it to actually turn bearish. By some time, I don't mean hours or days or weeks...I'm talking months.
2) The bull market is extremely over-extended. By extreme what I mean is I'm of the opinion that there has never been a time if our lives where the market has been this far out of whack in regards to price:value. Technically - it is what I would consider ripe for some type of correction. That doesn't mean today is a top. Or tomorrow. But I would suggest that soon, it would be "natural" for the market to begin some corrective move - just to get back in-line with the bullish trend. For example if the $SPY were to drop 20 points...we'd still be WAY over-valued and my opinion wouldn't change. A 15-20% correction wouldn't move the needle on the LT bull trend. At these current levels we are in dangerous territory if you care about that 15-20%.
3) I'm $GYPR(ing) to protect and prepare for opportunity if and when the market does decide to come back towards "balance". It's not a time for panic - sell everything. Rather a taking a calm perspective with future opportunity in mind.
4) So what to do: You've got 15% sitting in cash. Would you consider a hedge type of play on that? For simplicity you might want to take a look at the ETF $TAIL. It's a tail risk strategy that invests about 90% in US Treasuries and then out of the $ Puts on the $SPY. In a corrective move investors will tend to flee towards treasuries, volatility will increase (+ value to the puts), and the puts themselves will increase in value. If we're wrong...$TAIL will decline, but that loss will be off-set by the increase of your already held long positions. In addition because the $VIX is pretty low, the timing is decent and $TAIL is pretty cheap. If and when the corrective moves comes - look to unload at levels of support. Right now that would be $290ish and $280ish - being attentive if the $SPY were dropping towards those levels and finding the right time for YOU to unload. This isn't about being perfect. It's about developing a plan for a "natural" corrective move and following that plan as it unfolds.
5) I'm hesitant to post this type of stuff because if I had my way I'd want "most" of you to make money. (I kid you Trump loving lunatics - I even want you to make money too- I guess that's the "socialist" in me). Therefore, please do your own due diligence and mostly don't do something stupid because I posted something stupid.