Been thinking about mutual funds lately, especially with all the talk about ETFs taking over the market. But here's the thing - they're still pretty dominant if you look at the actual numbers. Back in 2017, mutual funds were sitting at about $18.7 trillion compared to ETFs at $3.4 trillion. That 4-to-1 ratio tells you something about how embedded they are in people's portfolios.

Now, the interesting part is watching the fee structure evolve. Active fund fees dropped to 0.72% in 2017 from 0.75% the year before - nothing crazy, but it's the direction that matters. The real question though? What are the actual disadvantages of mutual funds that people should be paying attention to?

Let me break down what I see as the main issues. First, there's the cost factor. Active mutual funds still charge way more than passive index funds or ETFs. Beyond just the expense ratios, you've got minimum investment requirements, upfront loads, and trading commissions. Some funds are loosening up on minimums - Fidelity made moves toward zero minimums - but it's still not uniform across the board.

Then there's liquidity. If you're not a buy-and-hold person, this matters. Mutual funds price once a day at market close, so whether you sell at 10 AM or 2 PM, you get the same price. ETFs? They trade all day like stocks. For active traders, that's a meaningful difference.

But here's what really gets overlooked - the tax situation. And this is where the disadvantages of mutual funds become pretty significant for a lot of investors. Actively managed funds can create taxable events that passive funds rarely generate. When a fund manager sells a winning position, that capital gain gets passed to shareholders. Most active funds distribute 100% of income and capital gains annually. That tax liability? It lands on you. With index funds and ETFs, you're mostly avoiding that.

On the flip side, mutual funds do offer some genuine advantages. Diversification is the obvious one - you can grab something like VTSMX and own 3,654 stocks across large, mid, and small caps instantly. That's powerful for passive investors.

You can also target specific factors - growth, value, low volatility - without having to build that yourself. And the asset class access is legit. You're not stuck with just domestic large-cap stocks. You can access international markets, emerging markets, different bond segments, corporate debt, municipal bonds. That flexibility matters for portfolio construction.

So when you're weighing the disadvantages of mutual funds against their benefits, it really comes down to your situation. Active funds? Higher costs, tax drag, and limited intraday pricing. Passive funds? Much cleaner from a tax perspective and cheaper. The key is understanding what you're actually paying for and what you're giving up.