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401k with paltry match or SPY ETF?
Switching to only 401k or only SPY?  Both bad ideas.  Read on. You need multiple savings vehicles.  401k, Roth IRA, emergency fund.  You can/should add others for long term savings goals and wealth building.  Though you could combine the non-tax-advantaged accounts and keep track of your minimum (representing the emergency fund). SPY is ETF version of SPDR index mutual fund tracking the S&P 500 index.  Index funds buy weighted amounts of members of their index by an algorithm to ensure that the total holdings of the fund model the index that they track.  They use market capitalization and share prices and other factors to automatically rebalance.   Individual investors do not directly affect the composition or makeup of the S&P500, at least not visibly.  Technically, very large trades might have a visible effect on the index makeup, but I suspect the size of the trade would be in the billions.   An Electronically Traded Fund is sold by the share and represents one equal share of the underlying fund, as divided equally amongst all the shareholders.  You put dollars into a fund, you buy shares of an ETF. In the case of an index ETF, it allows you to "buy" a fractional share of the underlying index such as the S&P 500. For SPY, 10 SPY shares represent one S&P basket.  Targeted retirement plan funds combine asset allocation into one fund.  They are a one stop shop for a diversified allocation.  Beware the fees though.  Always beware the fees. Fidelity offers a huge assortment of plans.  You should look into what is available for you after you decide how you will proceed.  More later. SPY is a ETF, think of it as a share of stock.  You can go to a bank, broker, or what have you and set up an account and buy shares of it.  Then you have x shares of SPY which is the ETF version of SPDR which is an index mutual fund. If the company is matching the first 10% of your income on a 1:1 basis, that would be the best I've heard of in the past two decades, even with the 10 year vesting requirement.  If this is them matching 1 dollar in 10 that you contribute to 401k, it may be the worst I've ever heard of, especially with 10 year vesting.  Typical is 3-5% match, 3-5 year vesting. Bottom line, that match is free money.  And the tax advantage should not be ignored, even if there is no match. Research: I applaud your interest.  The investments you make now will have the greatest impact on your retirement.   Here's a scenario:  If you can figure out how to live on 50% of your take home pay (100k * 0.90 * 0.60 * 0.5 / 12) (salary with first 10% in 401k at roughly 60% after taxes, social security, medicare, etc. halved and divided by 12 for a monthly amount), you'll have 2250 a month to live on.  Since you're 28 and single, it's far easier for you to do than someone who is 50 and married with kids.  That leaves you with 2250 a month to max out 401k and Roth and invest the rest in wealth building.  After four or five years the amount your investments are earning will begin to be noticeable.  After ten years or so, they will eclipse your contributions.  At that point you could theoretically live of the income.  This works with any percentage rate, and the higher your savings rate is, the lower your cost of living amount is, and the faster you'll hit an investment income rate that matches your cost of living amount.  At least that's the early retirement concept.   The key, as far as I can tell, is living frugally, identifying and negating wasteful spending, and getting the savings rate high without forcing yourself into cheap behavior.  Reading financial independence blog posts tells me that once they learn to live frugally, they enjoy it.   It's a lot of work, and planning, but if you want to be financially independent, you are definitely in a good position to consider it. Other notes: