diff --git a/src/imports.jl b/src/imports.jl
index 727ab54f83..b41e28202f 100644
--- a/src/imports.jl
+++ b/src/imports.jl
@@ -182,6 +182,7 @@ import ITensors.NDTensors:
   truncate!,
   using_tblis,
   vector,
+  RankFactorization.Spectrum,
   # Deprecated
   addblock!,
   store
diff --git a/src/lib/ITensorMPS/src/abstractmps.jl b/src/lib/ITensorMPS/src/abstractmps.jl
index 629075f183..2c1f9f3265 100644
--- a/src/lib/ITensorMPS/src/abstractmps.jl
+++ b/src/lib/ITensorMPS/src/abstractmps.jl
@@ -1677,30 +1677,42 @@ function truncate!(M::AbstractMPS; alg="frobenius", kwargs...)
 end
 
 function truncate!(
-  ::Algorithm"frobenius", M::AbstractMPS; site_range=1:length(M), kwargs...
+  ::Algorithm"frobenius",
+  M::AbstractMPS;
+  site_range=1:length(M),
+  return_spectrum=false,
+  kwargs...,
 )
   N = length(M)
+  Nbonds = N - 1
+  bond_names = Tuple([Symbol("bond_$(α)") for α in 1:Nbonds])
+  # TODO: Not sure how ths will work. Its a local module or "lib" as NDTensors calls it. Need to investigate this more to see how getting it here would work. Or just make it type Any?
+  spectrums = Vector{Spectrum}(undef, Nbonds)
 
   # Left-orthogonalize all tensors to make
   # truncations controlled
   orthogonalize!(M, last(site_range))
 
   # Perform truncations in a right-to-left sweep
-  for j in reverse((first(site_range) + 1):last(site_range))
+  for (idx, j) in enumerate(reverse((first(site_range) + 1):last(site_range)))
     rinds = uniqueinds(M[j], M[j - 1])
     ltags = tags(commonind(M[j], M[j - 1]))
-    U, S, V = svd(M[j], rinds; lefttags=ltags, kwargs...)
+    U, S, V, spec = svd(M[j], rinds; lefttags=ltags, kwargs...)
+    spectrums[idx] = spec
     M[j] = U
     M[j - 1] *= (S * V)
     setrightlim!(M, j)
   end
-  return M
+  if return_spectrum
+    return M, NamedTuple{bond_names}(spectrums)
+  else
+    return M
+  end
 end
 
 function truncate(ψ0::AbstractMPS; kwargs...)
   ψ = copy(ψ0)
-  truncate!(ψ; kwargs...)
-  return ψ
+  return truncate!(ψ; kwargs...)
 end
 
 # Make `*` an alias for `contract` of two `AbstractMPS`