MMFUSDT
MMF / Tether USD
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At a 6% mortgage rate, after I had an emergency fund I was comfortable with, I would pay down the mortgage. If my mortgage were within 1% or so of MMF rates, I would not pay it down and build up my cash or investments (always after maxing tax advantaged investments as one can in all instances as first priority.)

There have been a few (very few) instances of obscure MMFs breaking the buck for a loss of a very small percentage. Federal and Treasury MMFs at the major brokers are very safe.
FDIC bank failures are actually somewhat common. "*There were 570 bank failures from 2001 through 2025*."
There are other MMFs that hold other things, like commercial paper, that may have a slightly higher yield with more risk. All MMFs are highly regulated to reduce the likelihood of breaking the buck. To operate as a MMF they can't go wild and do whatever they want.
The government bailed out some very few MMFs in \~2008. They also tightened MMF regulations and said they wouldn't do those bailouts again.
SIPC does not insure at all for market value loss. It insures for fraud and malfeasance by the fund management. The bonds in Treasury MMFs are protected by the full faith and credit of the government making the MMF very safe. I can't think of a mechanism where Treasury bond MMFs would break the buck. In the case of some crisis causing unsustainable withdrawals they can halt or limit withdrawals to give them time to manage the fund.

I've been selling since that one day megapop shortly after liberation day. Would I have more money if I had stayed in? Sure. Am I mad I've been selling? I just sold more this week. Does that answer the question?
IMO, the market is being insanely irrational. Look at all that's going on in the world. Yet the market keeps climbing higher. It's non-sensical. That's what bubbles are like. I've been through a few of them.
Right now, I'm about 40% in cash. To put that in perspective. I can live off that 40% just sitting in MMF forever. The money I still have in the market is more money than the vast majority Americans will ever have. So I'm good leaving things as is. Making money is good. The security of knowing you are financially secure until you die is priceless.

Can you name a single example of a MMF that went bust in 2008?

Look at it from Schwabs viewpoint. If you are inactive then Schwab gets a ton of money from all this cash. If you are inactive you are a cost (realtime quotes). If you are active you probably already do a MMF or Sgov types.

👀🔥
**Income Stament: Second Quarter (2Q) of 2026 (FY)** *"2025-2026"*
https://preview.redd.it/2c2301j5iusf1.png?width=1383&format=png&auto=webp&s=8a7819c245350432f2a268a763ccc18e6ac145fd
GME Incomes:
* Core Business Operations 📈 = Revenues - Total Opex = EBIT 📈 (*Earnings Before Income & Taxes- Most important!*)
* Bitcoin Appreciation (%) 📈 = Earnings 📈
* Cash Yield (*MMF or T-Bills, Short Term Rates*) 💰 = Interest income (%) 💸 - Passive Income
[Analysis Workflow - Row Zero Spreadsheet: GME vs MSTR Financial Statements 👀](https://rowzero.io/workbook/0FEDDAE3E60A3D78911BD64A/1)

This is why I decided to use another broker for active trading. I use Schwab solely for MMF now.

Years ago Schwab decided to lean on net interest for a big chunk of their revenue. That's why they were able to survive the industry-wide pivot to zero fees, when TD and eTrade didn't.
But because of that, the MMF core position will never happen. This isn't some novel idea that they haven't considered. It's a part of their core business strategy.

Your MMF position is considered cash for the purposes of trading, you don’t need to wait a day to use that cash after selling the fund.

MMF do sometimes change in value.
It's a catastrophic event called "breaking the buck".

You can make a purchase in your account of a stock or ETF, and sell the MMF to cover the purchase as they will both settle the same day.

Schwab does not earn fees from their MMF like SWVVX?

spaxx is MMF.

How hard is it to just buy a MMF or go to Fidelity? Do we really need 8 thousand posts a week ok this subreddit about i6?

ELI5 - In-laws have retirement in basic savings with smaller bank. I'm debating telling them SPAXX vs MMF with credit union

I’m once again asking for MMF as core position in brokerage accounts

> can MMF be held within CMA?
Yes! When you open a CMA, you are given the choice whether to use a money market or bank sweep as your core position. You can change your mind later by going to Positions \> Cash Management \> Cash \> Change Core Position. Either option works for clearing checks.
You *can* also buy other assets inside the CMA, but… probably best not to.
> If I have to transfer into CMA each month it isn’t much different than what I do now.
Yep, the accounts are almost exactly the same now. I believe the only differences remaining are:
- CMA has ATM reimbursement even at the lowest customer relation tier
- CMA has a self-funded overdraft feature that can draw from money market funds, or margin debt, in other accounts
- CMA, itself, is permanently ineligible for margin loans

You’re mixing an account (CMA) with an asset (MMF).

Others on this sub say the CMA clears directly from the MMF. So…can MMF be held within CMA? I am thinking the Fidelity checks we have are not a CMA but something else. If I have to transfer info CMA each month it isn’t much different than what I do now.

A 2035 TDF will still holds considerable equities at 2035, because it's designed for regular withdrawal starting on 2035 for \~30 years. It's not designed for one time withdrawal of 100%. Also usually TDF will still have 10% bonds early.
I would lump sum all your initial investment if you have any, and then DCA with your paycheck (if you have any) into VTI/VT/VOO during next 7 years. Then DCA out of the equity in 7 years to HYSA/MMF/SGOV. So in 10 year you would have at least 80% bonds and at most 20% equities.