A Manually-Tracked Asset Doesn't Reprice Every Day. Here's Why That Changes How You Should Rebalance Around It
5 min read
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5 min read
You set up a rebalancing band, maybe the same 5-point band from our own test of calendar versus threshold rebalancing, and it works cleanly for stocks and gold because both reprice every day off a real market. Then it reaches your apartment, or the gold jewelry you inherited, and the same rule stops behaving the same way. A manual asset doesn't get a daily market price. It gets a number your tracker builds for you between updates, and that number can quietly mislead a rebalance in two separate ways: it can say you've drifted when you haven't, and even when it's right, selling the asset may not actually get you back to target.
A stock or a crypto token has a real, quoted price every second the market is open. An apartment or a gold necklace does not. Instead, NetWort asks for a purchase price once, then compounds it daily at an assumed annual rate you can set at entry, category by category: Real Estate defaults to +3.0% a year, Vehicles to −10.0%, and Luxury Goods collectibles like jewelry or a watch to +5.0%, before you touch the settings (confirmed in NetWort's own manual asset defaults). That number moves every day on your screen. It has nothing to do with what the asset would actually sell for today.
Say a portfolio is split 50/50 between a liquid sleeve and an apartment worth Rp1,000,000,000, with a 5-point band around that 50% target, matching the band size used in our threshold-rebalancing test. Left untouched for ten years, NetWort's assumed +3.0% compounding shows that apartment growing to Rp1,343,916,000, which pulls its share of the portfolio to 57.3%, more than 7 points past target and well outside the band. The app says rebalance.
Bank Indonesia's own Residential Property Price Index tells a different story. Its most recently measured national reading, for the second quarter of 2026, put annual residential price growth at just 0.69%, roughly a quarter of NetWort's default assumption (Fortune Indonesia; Bank Indonesia via Antara). If the national market kept growing at that same pace for the same ten years, purely as an illustration of the gap and not a forecast, the apartment would be worth closer to Rp1,071,210,000, just 51.7% of the portfolio, comfortably inside the band. One number says trade. The other says don't. Only one of them is describing anything that actually happened in the property market.
Now take a case where the trigger is right, and the asset really has grown out of band: gold jewelry, tracked under NetWort's Luxury Goods (collectible) default of +5.0% a year. Say that growth genuinely pushes the jewelry sleeve past its band, and the rule calls for selling Rp5,000,000 of it, by book value, to bring the portfolio back to target.
Our own comparison of gold jewelry and gold bar buyback prices found that a jewelry buyback typically comes in 10% to 25% below what you paid, once a shop's discount and the making charge you can't recover are counted, sourced from Galeri24 and Kompas.com's own reporting. Apply that same range to the trade: selling Rp5,000,000 of book-value jewelry realizes somewhere between Rp3,750,000 and Rp4,500,000 in actual cash, Rp500,000 to Rp1,250,000 short of what the rebalance was sized for. A same-day Antam gold bar round trip only gives up about 5.6% by comparison. The trade fires correctly and still leaves the portfolio short of target, because the thing being sold was never worth what its book value claimed.
If you hold property, jewelry or another manual asset, open NetWort's Holdings page and check when its rate and value were last actually reviewed, not just what percentage it shows today. That's the only way a rebalance signal touching that asset means what it looks like it means.