Jim Cramer fills his blog on RealMoney every day with his up-to-the-minute reactions to what's happening in the market and his legendary ahead-of-the-crowd ideas. This week he blogged on:

  • How the market is maddeningly inconsistent
  • How high-valuation stocks get in trouble

Click here for information on RealMoney, where you can see all the blogs, including Jim Cramer's -- and reader comments -- in real time.

Cramer:The Market's a Conundrum, so Beware

Posted on Sept. 1 at 2:50 p.m. EDT

Maddening inconsistency. That's what has Wall Streeters pulling hairs and banging fists. Companies, sectors, data, you name it, they just don't add up, and the confusion's playing havoc with the bulls and the bears alike.

Let's start with the broader economy.

We have so many indicators that seem to be pointing up or staying strong: housing, employment, manufacturing, broader retail sales. But then we get hit with one of the weaker manufacturing reports we have had in ages, a 49.4 PMI number with anything below 50 meaning contraction. Heck, Britain gave you a 53, and they just went through that gut-wrenching Brexit election.

How can manufacturing be that soft? Has oil, two years after a peak, at last hit home? The data don't indicate that. Some would say autos are peaking. But they are doing so at a very high level. It's just plain out of synch.

Then there's oil itself. There are two markets. We have a true commodity market, which is governed by supply and demand. Trust me when I say supply is swamping demand. We are running out of places to store everything from oil to gasoline to natural gas liquids. The domestic rig count has tripled since the bottom a few months ago. The Saudis are pumping like mad. So are the Iraqis and the Iranians. The Nigerians seem to have reach a truce with bandits who have endlessly blown up their pipes.

The glut continually drives oil down, with $39 seeming to be the next stop for crude as it declines another $1.32, to $43. It's hideous out there.

But when we get to those levels we find sudden rumors percolating that there's going to be a deal between the Russians and the Saudis to throttle production or that OPEC producers have agreed uniformly to cut back. Even though it is certainly not in any of these countries to cut back, because U.S. production will come right back on line, the rumors always do the job of popping oil right back up. So, the real market should be lower but the phony market keeps it higher. Given that so much of the stock market depends directly on the direction of oil, this erratic rumor-driven market should, in no way, be counted on for any honest signal.

Then there's the Fed.

Who speaks for this Fed? One week ago, Janet Yellen put one rate hike on the table, perhaps as soon as September, especially, you have to believe, if we get a strong nonfarm payroll number Friday. Yellen's Jackson Hole speech sent the market soaring.

Then Vice Chair Stanley Fischer, within a couple of hours of Yellen's speech, put the two-rate-hike thesis right back on the agenda. Which is it? One or two? Who can make investing decisions in this kind of environment? Why did Stanley Fischer have to confuse us? Why? I have no answer whatsoever for that.

How about overseas?

What are two of the strongest markets around the world? They are Brazil and Russia. Brazil's got new leadership and a strong currency. But only a handful of companies are reporting anything good there. The Russian economy's based on oil. That means it should be weak. The West still has sanctions against them from the Ukraine incursion. The strength in either makes no sense. Yet the markets are telling us that all is well and getting better.

Or Europe. I have talked to dozens of companies with operations in Europe and they are often the strongest portion of their business mosaic. Yet interest rates are negative. How the heck is that possible if the economies are showing real growth?

How about China? We keep hearing weakness, right? No one is talking about China gaining strength. Yet we got a purchasing managers' report that was better than expected, and we saw a jump in Macau gambling that was so meaningful that it's driving Las Vegas Sands(LVS) - Get Report and Wynn(WYNN) - Get Report stocks dramatically higher.

Then there's the bizarre, inconsistent state of individual American businesses. Take the two hottest subsectors of tech: the cloud and cybersecurity. On Tuesday, Palo Alto(PANW) - Get Report reported a terrific quarter, but then gave guidance that some analysts interpreted as a deceleration. The stock immediately lost $10. But then, upon further review, buyers rushed right back into the stock, taking it up more than $7. What happened to move it back up? Nothing, nothing at all. There's not a single story or piece of research I can find driving the stock higher. My conclusion: perhaps it should never have gone down to begin with?

Who knows?

The cloud's even more difficult. Every company is rushing to the cloud. It's an ongoing revolution that's accelerating globally. But Wednesday night, Salesforce(CRM) - Get Report , the king of the cloud, reported softness in U.S. cloud business in the month of July. Huh? How is that possible? The company blamed its own blocking and tackling and cited its own execution problems for the slowing in sales. But what if something's happened to slow adoption? There are so many companies that are dependent on the continued migration to the cloud.

Out of nowhere, it's a conundrum.

What's the hottest part of tech? How about the most boring, slowest-growing and most-commodity portion: namely flash and DRAMs. That's why Micron's(MU) - Get Report been on fire. You want topsy-turvy? Intel(INTC) - Get Report and Advanced Micro Devices(AMD) - Get Report , companies that make microprocessors for personal computers, have very strong stocks. Intel hit a 52-week high Thursday despite reporting a shortfall in its most recent quarter. AMD's up 155%. That's incredible.

Or how about the craziness of retail? Is it good? Is it bad? Target(TGT) - Get Report says it's tough. Walmart(WMT) - Get Report says it's better. Home Depot(HD) - Get Report blows it away, Lowe's(LOW) - Get Report delivers a just-OK number. The mall's supposed to be dead, but L Brands(LB) - Get Report , Urban Outfitters(URBN) - Get Report and Children's Place(PLCE) - Get Report , Penney(JCP) - Get Report and Nordstrom(JWN) - Get Report all report terrific numbers, I mean terrific ones. But then again, Gap(GPS) - Get Report , Abercrombie(ANF) - Get Report , Macy's(M) - Get Report and Kohl's(KSS) - Get Report report subpar results.

Sometimes the inconsistency in retail afflicts the same company. Two months ago Costco(COST) - Get Report reported fantastic numbers. Last night? Weak ones. Why? No answers.

Consumer packaged goods stocks have traded together for ages -- not any more.

General Mills(GIS) - Get Report recently reported a fine number with excellent acceleration in its natural and organic business. But Campbell's reported its earnings last night and they were, by the company's own admission, disappointing. The weakness? Yep, the more organic portions of their business.

Finally, there's the transports.

The companies that have the most trouble making their quarters? The rails. Why? Because their most important cargo, their money merchandise, is coal and coal is going away so fast it's almost as if it were banned. The decline keeps outrunning whatever these companies do to cut costs, no matter what they do. Nevertheless, their stocks are among the strongest in the entire market. They go up on good and bad days. They go up on bad quarters. They just go up.

But you know what goes down consistently? The airlines. They are dirt cheap selling at price-to-earnings multiples that are at a third of the overall market, even as they are brimming with cash because they are greatly exceeding their cost of capital, the first time in my lifetime that's happened. They are returning capital with dividends and giant buybacks. Yet they can't get out of their own way. They are performing horrendously, all of them.

I can't blame a soul for being frustrated. I can't fault anyone for wanting to sell now that we are in the historically worst month of the year facing a rate hike or even two and uncertain earnings from companies that rarely miss. News defies the truth. Facts are stranger than fiction. Conundrums do not make for fabulous investing opportunities. So, until we clear up the inconsistencies be careful out there.

At the time of publication, Jim Cramer's charitable trust, Action Alerts PLUS, was long COST.

Cramer: How Stocks With High Valuations Get in Trouble

Posted on Aug. 31 at 11:35 a.m. EDT

When you play with high-multiple fire, you can get burned.

That's why I am relating Ulta(ULTA) - Get Report and Palo Alto(PANW) - Get Report . Sure, one's in beauty and the other is in cybersecurity, but they both have stocks with extremely high valuations. Ulta traded at about 45x earnings, the highest-valued retailer going into its quarter. Palo Alto sported an even richer model going into its quarter.

Ulta reported a fantastic quarter, but unlike the previous quarters, it didn't guide to well above what the Street was looking for. Instead, it "did" the number, which is certainly not enough with that elevated price to earnings multiple. My rule of thumb: When you have that big valuation, you have to have some numbers that get analysts to move up at least 5% on their current projections for next year. You didn't get that.

Palo Alto? Wow, billing growth of 45% was amazing. The cash flow margins: 35%-50%. So few companies can give you 33% growth.

However, the company gave you a decelerating forecast, forcing some analysts to actually cut numbers.

That's how the stock could fly after hours on all of the good stuff past and then plummet on all of the bad stuff forward.

You simply cannot possibly cut estimates with that high a multiple and not expect the stock to get whacked, which is exactly what happened.

I think you can make a case as Ulta comes down that there is a level where you are pricing in the good but not fantastic numbers for next quarter. I can't figure out what to pay for Ulta and would prefer to wait until we get closer to the next quarter to buy it.

Still, this is the life cycle of the high-multiple stocks regardless of the industry. They require a beat and a raise of both sales and earnings that few can deliver. These two couldn't. And now shareholders are paying the price.

Action Alerts PLUS, which Cramer co-manages as a charitable trust, has no positions in the stocks mentioned.

At the time of publication, Action Alerts PLUS, which Cramer co-manages as a charitable trust, is long COST.