NTSX
WisdomTree U.S. Efficient Core Fund
stock NYSE ETF

You can check out some strategies at this website: https://bestfolio.app/leaderboard
With a fixed unleveraged buy-and-hold allocation the best risk adjusted returns (highest Sharpe) is the ‘Golden Ratio’ portfolio with CAGR 9,7%. Allocation to VUG, AVUV, VGLT, GLD, DBMF and BIL.
For a buy and hold strategy with leverage, the ‘Return Stacked Quartet’ is better with a CAGR 13,9%. Allocation to NTSX, GDE, RSST and ZROZ.
If you want to use different sleeves and indicators to allocate dynamically ‘Hybrid Asset Allocation’. There are different versions of it but the one with the best Sharpe gives 24,9% CAGR with max -27% drawdown with 52 years of data.
If low drawdown is your priority, ‘Defensive Asset Allocation’ may also be an option. It’s also a dynamic allocation strategy with CAGR 13% and max drawdown -16,6% (version with gold and managed futures).

I moved kids to 60% NTSX and 40% VXUS for 6% 6 x US treasury futures
So 94% equities, 36% bonds.
My retirement portfolio is far more diversified.

I'd rather hold approximately the free float weighted market cap of bonds and stocks and increase risk/reward with leverage (using something like NTSX) than increase risk by concentrating into stocks.

They are the lowest average expense ratio out of all ETF providers which is nice. I love that for them.
Getting others to lower their expense ratios is a boon for investors, yes. No doubt Vanguard has had a positive influence on investors outcomes.
Others calculated you could save 10-30k over 20+ years with 0.015 bps less. That’s a lot of money. If you start at 20 and live to 80, that’s 60 years of fees eating away at your heirs inheritance. 30k is like a whole year or two of college, a full car, etc. Depends how much you invest.
Let’s say your heir inherited 1m at 20. Assuming 60 years at 9%:
3bps: 173.5M
1.5bps: 174.9M
1.4 million dollars. These are large assumptions but still. Wouldn’t you want them to be in the cheaper fund? That’s more than the starting balance saved in fees!
Let’s say 100k at 20. With the same assumptions:
3bps: 17.35m
1.5bps: 17.49m
or 145k.
But okay, give thousands upon thousands to one brand just… because? Fine by me.
My strategy is irrelevant to the discussion. My core is a fund called NTSD, it’s 1.5x leveraged and quarterly reset. Many would probably scoff at that but there is legitimate research in favor of it, called “lifecycle investing”. Backtests are extremely good for modest leverage too.
https://spinup-000d1a-wp-offload-media.s3.amazonaws.com/faculty/wp-content/uploads/sites/8/2019/06/LifecycleInvestingLeverage\_v2008.pdf?utm\_source=chatgpt.com
My portfolio backtests to 12.2% CAGR over 32 years. https://testfol.io/?s=gN0MNOeMybs
But I can’t realistically convince people to use leverage, even if it’s “safe.” It uses EAFE futures, not total return swaps. No real volatility decay like daily reset products. Getting 50% extra exposure for 0.35bps and the cost of leverage - that’s a great deal to me.
But at the end of the day people’s money is their own, I have no gain or loss for sharing this information, I just legitimately want to help people with what I’ve learned. I’ve spent like a year or so constantly browsing investment forums, watching videos, learning tickers, running backtests. There’s a whole community running LETFs getting amazing results. Now I don’t agree with the people running TQQQ, SOXL, and UPRO, those are too much.
Even a simple 90% SPY + 60% bonds fund like NTSX beats SPY over 56 years. That’s just a levered classic 60:40 portfolio. Increases sharpe and sortino, lowers max drawdown, etc. Check out the backtest. Not very complicated and very cheap.
https://testfol.io/?s=igcTGfIDuB1
But I completely understand and respect people keeping it simple and understandable with VOO and chill. VT and chill. It’s simple and effective. No doubt whoever chooses that will have good investment outcomes.

You can go for something like VT to have more concentration in ex-US tech stocks. But it’s best to trust the market cap weights. They’re giant companies for a reason, and the market returns are the most consistent.
You can just choose to overweight small cap value or international or emerging markets value stocks or something. AVUV, AVDV, AVES are solid options to diversify against tech if you wish.
You can also lean into gold, bonds, and managed futures if you’re really scared of stocks. I would recommend capital efficient funds for those to not give up any normal stock exposures. NTSX, RSSB, RSST, and GDE come to mind. I think those are great diversifying ETFs that give you a SPY baseline plus a diversifying asset on top, just for the cost of leverage.