If you're thinking about investing in bitcoin, I've got some simple advice for you: Don't.

Bitcoin is a digital, online "currency," like dollars, except that you can't actually spend them anywhere. Try buying a grill from Home Depot with bitcoin and you'll see what I mean. Who is using bitcoin? It seems many of its users are people trading drugs and other contraband, anonymously, on the so-called dark web.

And yet bitcoin has soared in value from less than $1,000 at the beginning of the year to more than $17,000. In other words, one bitcoin costs close to the down payment on a house. This is what investors call a speculative bubble, folks.

Remember the dot-com bubble? The real estate bubble? There have been bubbles for as long as humans have traded things. By 1637, Dutch traders were paying more than 10 times their annual salary for tulip bulbs. You can guess how that ended.

What all these speculative bubbles have in common is that the people who can least afford to lose money get absolutely crushed. When bitcoin crashes, and it will, mom and pop investors—including those who are mortgaging their homes to buy bitcoin—will be left with nothing, while more sophisticated investors will have made a killing.

The bitcoin crash will likely occur for one of two reasons. U.S. and other governments will begin regulating the currency—removing its anonymity in order to track possible evidence of crimes—or big sophisticated investors, sensing that the top is near, will sell out and start a domino effect.

Right now, those big investors are counting on the hoopla about bitcoin to attract more and more investing novices who will buy the currency and pump prices even higher.

By the time bitcoin crashes, these more savvy investors will be long gone. You'll be the one left holding the bag. As the gambling saying goes, the sucker is the person at the table who doesn't know he's the sucker.

And none of this takes into account the security risks associated with bitcoin. Hackers have fraudsters have stolen millions and millions of dollars of bitcoin so far. And once it's gone, there's no getting it back. There's no FDIC insurance. There's nobody to sue. Remember, it's all anonymous.

Last week, the Chicago Board of Exchange, a financial exchange, started letting investors trade bitcoin futures. Essentially, it's letting people make bets on how much bitcoin will rise or fall. There's no clearer sign that owning or trading bitcoin trading is nothing more than straight-up gambling.

A lot of investing is common sense. Would you buy a dollar bill from me for thousands and thousands of dollars? If not, then you shouldn't be buying bitcoin.

The stock market has soared by 18% since the November election. And the promise of corporate tax cuts has been one of the major reasons why.

Reducing the corporate tax rate to 20% from 35%, as President Trump wants to do, would directly boost companies' earnings. The expectation of this cut, part of a broad push to reduce both corporate and individual taxes to the tune of $5.8 trillion over 10 years, continues to help fuel the market.

But what President Trump and Congress are not able to pass their big, ambitious package of tax cuts? In that scenario, I believe that the market could very well fall hard. Nor would the market be satisfied with a watered-down tax reform; I believe it would react by selling off.

The last tax overhaul took place 31 years ago, in 1986, under President Reagan. And there's a reason no sweeping legislation has been passed since then. Given the competing interests in Washington, it's always been hard to get the needed majorities in the House and the Senate to agree on the details of reform.

This time around, that task figures to be harder than ever, and much more difficult than the doomed push for healthcare reform. The reason is gridlock. Congressional gridlock used to be Republicans vs. Democrats; but now, Republicans can't even seem to agree with each other.

Some Republicans balk at any tax cuts that will increase the budget deficit, while others don't care. Republicans are divided about the estate tax, tax cuts for the rich, and other big questions. And they're certainly not likely to get any help from Democrats, who voted against healthcare reform as a block.

If tax reform fails, sophisticated investors who had hoarded shares of highly taxed companies (which they thought would get a big earnings boost due to a tax cut) will sell those shares. Companies that hired additional people because they expected a tax windfall will lay those employees off. The results could ripple through the economy and the market.

How should you invest, given the possibility that tax reform fails? There's no one formula that will position you to make money but also to hedge against big corrections. They key to building an investment portfolio for uncertain times is to make sure that each individual stock, bond or fund in your portfolio passes the test of quality and price. And the best way to do that is to work with a qualified financial advisor.

Don't hesitate to contact us if you'd like a no-obligation portfolio review.

Nobody hopes for natural disasters. But like it or not, these acts of nature impact companies, and the effects on those companies can create opportunities for investors to make money.

The key is to study stock valuations and buy and sell at the right times. We can use Hurricane Irma as an example. In the days before Irma made landfall in Florida, the stock of Universal Holdings, a south Florida insurer, fell by 26%. Investors feared that damage from the hurricane’s projected path, up the east coast of the state, would bury the company under expensive claims.

But there was a case to be made for buying Universal Holdings during its slump. Insurance companies are typically able to raise premiums after big losses; that can lead to more profits and higher stock valuations.

Luckily for the east coast, Irma tacked west, where the insurance company is not as exposed. In recent days, Universal Holdings was up 27%. But if you believe that a greater bounce is coming once investors fully realize the company’s good fortune, then that stock could be a buy. 

Or look at home improvement stores like Home Depot or Lowe’s. You may have seen photos prior to the storm of homeowners snapping up plywood to protect their windows. Selling out of wood at their stores in Florida will provide a nice boost to these companies’ earnings. One strategy: To buy shares before the firms’ next quarterly earnings reports, in early November. Share prices could pop on “surprising” earnings, which would provide a short-term opportunity to make money.

Then there are the airlines. More than 13,000 flights were canceled due to Irma. That’s bad news for airline companies, but over-reacting investors could push their stocks down to the point where they’re actually good values. What about gas companies? Fuel prices shot up before Irma and are still high—something that will pad earnings for the companies doing the selling.

There’s no guarantee that investments like those above, or investments of any kind for that matter, will make money. But by patiently identifying opportunities created by natural disasters, we have the potential to earn extra returns. 

It's an unfortunate fact that most people do more research before buying a car than they do before hiring a financial advisor.

Choosing a financial advisor can have a huge impact on your financial success, of course. But many people don't research as thoroughly as they should, just because they don't know what to look for.

When selecting an advisor, you should consider the person's background, experience, clientele and investment style. As a starting point, it's important to understand whether the advisor is a registered investment advisor (RIA) or a broker. RIAs are paid purely to give advice; they generally charge a fee based the total amount of assets they manage for you. Brokers are paid to sell investments; they earn commissions each time you buy a stock, bond or other investment, which can create conflicts of interest.

RIAs, who are regulated by the Securities and Exchange Commission (SEC) or their home state, are fiduciaries—they're legally required to act in your best interest. Brokers, regulated by the Financial Industry Regulatory Authority (FINRA), an industry self-regulatory organization, are held to a lesser standard. They must ensure that the investments they sell you are "suitable" for you, and there can be a lot of gray area there.

While many people consider advisors more trustworthy, it can make sense to work with a broker in some cases. If you just want to make transactions, and you want to have a major say in what's bought and sold, then a broker may make sense for you.

Beware of advisors who are registered as both RIAs and brokers. These advisors can switch back and forth between charging fees and commissions, resulting in an accumulation of unexpected charges. Here's how to check credentials, employment history and disciplinary history. For brokers go to www.finra.org/Investors/ToolsCalculators/BrokerCheck.

For registered investment advisors (RIAs), you'll want to find the ADV Part 2 disclosure form. Go to the SEC's Investment Adviser Search website, at www.adviserinfo.sec.gov/IAPD/Content/Search/iapd_Search.aspx .

Look up the advisor by firm name. After clicking the link for the firm, click the "SEC" link if the advisor is registered with the SEC, or if the advisor is registered with a state, click the link to that state. Click on "Part 2 Brochures." Google is another good background-check tool. Use it to see if there's negative feedback out there about a potential advisor.

When you interview an advisor, don't let him or her dominate the meeting with their standard pitch. Go in to the meeting with a list of questions, including:

What is your investment strategy? It's important that your advisor's strategy and philosophy match yours.

What is your typical client like? If the advisor hasn't worked with someone like you—a small-business owner, a widow, a very wealthy person, for example—then you probably don't want to be their first.

What is your advisor-to-client ratio? If the advisor serves more than 100 clients, he or she may be stretched too thin to properly take care of you.

How much experience do you have? Intelligent, committed advisors can be any age, but a little seasoning can be very reassuring. If an advisor has been through a few bear markets, she may do a better job of protecting your money when hard times hit.

What is your age/career stage? You don't want to be the guinea pig for a young, inexperienced advisor; better to find one who has been through a few bear markets. On the other hand, an advisor in his 60s may be focused more on retirement than on you.

Finally, understand that a long list of credentials doesn't necessarily make for a great advisor. More and more credentialing bodies are cropping up every day, peddling every conceivable sort of designation. These organizations get paid handsomely to confer their credentials, and the advisors get to put more impressive-looking acronyms on their business cards. In my view, real-word experience dealing with clients and the markets trumps any academic designation.

Exchange-traded funds, or ETFs, have become a huge part of the market, and with good reason.

The funds are a quick, inexpensive way to get exposure to an underlying index—anything from the S&P 500 to very narrow indexes in specific sectors like technology or emerging markets. They're great for achieving a diversification that can lower portfolio risk.

Because they're bought and sold like stocks, they're easy to trade. And they allow investors to manage their tax consequences better than they can with mutual funds. ETFs now account for 30% of the trading volume in stocks, twice the level of a decade ago.

I regularly use ETFs in constructing and updating client portfolios. But it's not a good idea to create a portfolio that consists only of ETFs, or index mutual funds, for that matter. Here's why.
First, ETFs work best in a rising market. We've been in a bull market since 2009, a period during which most ETFs have done well for investors. But ETFs offer little or no protection during a period of sustained market decline.

That's because ETFs' holdings don't change when market conditions change. An S&P 500 fund will reflect that index even when the S&P is plunging. It won't adjust by, say, adding bonds or foreign stocks to the mix. ETFs are like corks on the water, rising and falling with the tides. In a word, they're dumb.

That's why my clients' portfolios include individual stocks and bonds, which I buy and sell based on market conditions and on the strength of the companies behind them.Individual securities let you be much more nimble in seizing opportunities and avoiding trouble. But they also let you take advantage of mispricings that are created by ETFs and other passive index funds.

When investors buy or sell an ETF en masse, the fund must buy or sell blocks of the stocks or bonds that make up the index they follow. ETF companies buy or sell the cheap and expensive stocks alike, with no analysis of each stock's fundamental strength. They don't consider whether they should buy or sell selectively.

Essentially, they throw the babies out with the bathwater. And that creates an opportunity for investors to find bargains.

Not long ago, I noticed that the price of bonds issued by chipmaker AMD were soaring up and down without any apparent rhyme or reason. There were no major changes in the company's condition or sales outlook. Eventually I learned that the price fluctuation was due to ETFs' indiscriminate selloff of the bonds in the manner I described above.
I bought a block of the AMD bonds at a very low price, and my clients made some good money off of it.

Another drawback with ETFs is this: If an investor only owns ETFs or index mutual funds, they are guaranteed to do no better than the market. ETFs, after all, are built on indexes that encompass big swaths of the market.

Example: If my clients' bond holdings between 2009 and 2013 had been only ETFs, they would have lost money. But, by buying and selling individual bonds in that period, we earned yields north of 10%.

So an important question for those who are deciding whether to invest in ETFs alone, or ETFs plus individual stocks and bonds, is this: Do you want to match the market, or do you want to beat it?