> Source: https://www.openingbid.art/artist/franz-theodor-aerni · updated 2026-11-03

# Franz Theodor Aerni (1853–1918)

Franz Theodor Aerni is a Swiss artist with 22 auction lots recorded since 2009, median price $3,902. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.

A work by Franz Theodor Aerni sold in 2025 for $17,418, according to OpeningBid's index of auction results.

## What is a Franz Theodor Aerni work worth?

Across 14 sold lots tracked by OpeningBid, the median price of a Franz Theodor Aerni work is $3,902.

The median Franz Theodor Aerni painting sells for $3,902 across 14 lots.

Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

## Price breakdown by category

| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 18 | $3,902†‡ | $17,418 | 77.8% | 2026-05-22 |

† hammer price — buyer's premium not included.

‡ reported price — whether it includes the buyer's premium is not yet verified.

## Price by size

### Paintings

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 10 | $2,782–$4,746‡ | $3,826‡ | $17,418 |

‡ reported price — whether it includes the buyer's premium is not yet verified.

Size is the work's longest edge. Cells appear only with at least 5 sold lots.

## Notable results

| Medium | Year | Price |
|---|---|---|
| Paintings | 2025 | $17,418 |
| Paintings | 2014 | $6,232† |

† hammer price — buyer's premium not included.

The highest recorded result in each medium. The full sale history is in the OpeningBid app (free sign-up).

## Frequently asked questions

### What is a Franz Theodor Aerni worth?

Across 14 sold lots tracked by OpeningBid, the median price of a Franz Theodor Aerni work is $3,902. The median Franz Theodor Aerni painting sells for $3,902 across 14 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

### What is the average price of a Franz Theodor Aerni painting?

Based on 14 sold lots tracked by OpeningBid, the median auction price of a Franz Theodor Aerni painting is $3,902. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

### What is Franz Theodor Aerni's most expensive painting?

The highest price recorded at auction for a Franz Theodor Aerni painting is $17,418.

### What is the average price of a medium Franz Theodor Aerni painting?

Based on 10 sold lots, the median auction price of a medium Franz Theodor Aerni painting (medium (50–120 cm)) is $3,826, according to OpeningBid's index of auction results. Some prices are not yet basis-verified (premium-inclusive or hammer).

### What is Franz Theodor Aerni's auction record?

Franz Theodor Aerni's auction record is $17,418, set in 2025.

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Data last updated 2026-11-03. OpeningBid tracks 15,596,131 auction lots from 579 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “Franz Theodor Aerni auction prices”, https://www.openingbid.art/artist/franz-theodor-aerni (updated 2026-11-03).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.