@twentyfive,
To be clear, I'm not a day trader. And I stopped picking individual stocks years ago. I prefer index ETFs now, but I haven't bought anything in a long time. I still have lots of individual stocks left over from years ago. (In fact, I'll probably never be able to get out of some of my natural gas-related positions, to give one example.)
But the number one rule I follow is to sell gradually into a big run-up and to buy gradually into a big down-move. I was buying aggressively in 2008 and 2009. I missed the downswing in 2011, but then I sold things selectively from 2013 to 2016. I've been scaling out a little more aggresssively during the last six months of 2017.
You can't necessarily do this with individual stocks; when individual stocks are heading down, it's often for a good reason, and they may even go to zero. But the broader market is a different story. That's why I like index ETFs: the market will never go to zero. It always bounces back eventually, it's just a question of when, so you can always feel safe buying the dips and scaling in on the way down.
Anyway, I don't have an indicator that I watch. The market IS the indicator! If you pick an indicator for buy and sell signals, other people will know about it, too, and pretty soon you'll need another indicator to predict your original indicator! Also, I know that old news doesn't move the market. And rising interest rates are old news now - a lagging indicator in the truest sense. It would be a different story if the Fed came out and said they were raising rates by 100 basis points all at once. That would be very unexpected. But a gradual firming and routine quarter point rate hikes? No one cares about that anymore. In fact, it's a good thing. Gradually rising rates is confirmation that the economy is strengthening, and that's good. Will the Fed get it wrong and overshoot? They almost always do. But the market already knows that and it's already baked into the cake.
Trump's protectionist moves are a different story because they are based on the whims of one man, and are thus inherently unpredictable. The market hates uncertainty. Some people would argue that Trump's trade protectionism is old news, too. After all, he ran on a protectionist platform. But it seems that no one took him seriously until very recently when he made his comments at Davos. Market participants always thought that Trump was saying one thing to the elites while saying something different to the rubes back home. But in Davos he showed that he was a true believer and that he couldn't be controlled by the "globalists" in his cabinet.
After Trump made his comments on Davos about withdrawing from Nafta on 1/26/18, a guy who works on a trading desk at the bank where I used to work sent me a message saying something like "holy shit, is this moron really serious about pulling us out of Nafta? Look at what he just said in Davos." He's a professional with a Bloomberg wire subscription who is glued to his terminal from morning to evening. Guys like that will always get the news long before we do. And they'll get the real news. Not just the old recycled shit that gets broadcast on CNBC.
So it seems that Trump's comments were taken seriously and that they soured the mood somewhat on the street. He followed them up a few weeks later by applying steel and aluminum tariffs, as if to emphasize that he meant what he'd said. Protectionism is bad because the entire global economy is based on trade liberalization.
For the record, I don't think Trump's tariffs will stand for long at the WTO. And if he does pull out of Nafta, the market will go nuts for a while as they re-price the odds from, let's say, 50% to 100%, but it won't matter because I believe we'll immediately begin to craft new trade deals that will look almost identical to Nafta. So I'm not really worried. I mean, if this is what it takes to spark a bear market, then that's good, too... it'll give me another buying opportunity. I could be wrong. Maybe we'll have a real trade war. But one way or another, I know that the market is far more worried about trade protectionism right now than it is about interest rates. And I think it shouldn't be too worried just yet about the former and not at all about the latter.